#21055-DX (#21055 similar)

#21055-DX-AL

Firstscope 60 Short

#21054

Firstscope 60 EQ Short

#21065

60mm (2.4") Aperture Focal Length of 900mm Focal Ratio of f/15 5x24 Finderscope (Model #21054) 6x24 Finderscope (Model #21065) 90 Hybrid Diagonal (Designed to Accept Either.96" or 11/4" Eyepieces) 20mm H Eyepiece .96" (45x) 8mm H Eyepiece 96" (113x) 2x Barlow Lens .96" Sturdy, Black Adjustable Wood Tripod with Accessory Tray Weight: 6 Lbs. (Model #21054) 9 Lbs. (Model #21065)
These unique short tube refractor telescopes offer the utmost portability yet are powerful performers. Excellent optical images are obtained from these telescopes featuring all glass optics. The Firstscope 60 Short model uses an altazimuth mount and includes a slow motion control rod for easy vertical adjustments. The Firstscope 60 EQ Short model uses an equatorial mount which features setting circles and slow motion controls on the R.A. and DEC. axes. These controls will enhance your viewing experience by simplifying both locating and tracking objects. When youre looking for a 60mm telescope offering a bit more versatility and control than the altazimuth model, this is a good telescope to consider.

Firstscope 60 EQ

#21066

Firstscope 60 EQ Deluxe

#21066-DX
Firstscope 60 EQ Deluxe-Aluminum

#21066-DX-AL

The standard Firstscope 60 equatorial telescope series offers three models to choose from. Like the altazimuth model of the Firstscope 60, this telescope has all glass components and coated optics to ensure very good optical performance. The telescope tube is glossy black aluminum and the mount features setting circles and slow motion controls on the R.A. and DEC. axes. These controls will enhance your viewing experience by simplifying both locating and tracking objects. When youre looking for a 60mm telescope offering a bit more versatility and control than the altazimuth models, these are good telescopes to consider. Standard Features on all three models:
60mm (2.4") Aperture Focal Length of 900mm Focal Ratio of f/Hybrid Diagonal (Designed to Accept Either.96" or 11/4" Eyepieces) 6x24 Finderscope Weight: 11 Lbs.

N E W T O N I A N R E F L E C T O R TE L E S C O P E S
Newtonian telescopes (also known as catoptrics) usually use a concave parabolic primary mirror (longer focal ratios may use spherical primaries) to collect and focus incoming light onto a flat secondary (diagonal) mirror. This secondary mirror reflects the image out of an opening at the side of the main tube and into the eyepiece.
Newtonian reflector telescopes offer a number of excellent features including: Freedom from most optical aberrations and delivery of very bright images. Reasonably compact and portable to focal lengths of 1000mm. Excellent performance observing faint deep-sky objects such as nebulae, remote galaxies and star clusters. Lowest cost per square inch of aperture due to use of mirrors rather than lenses. Generally fast focal ratios: f/4 to f/9. The 76mm (3") aperture of the Firstscope 76 models offer much of the performance of the Newtonian reflector design in a compact, highly portable instrument. The 114mm (4.5") Newtonian equatorial telescope is the most popular size telescope for the more serious beginning or intermediate level astronomy enthusiast, and for good reason. The large light gathering power of this 41/2" telescope makes it ideal for deep-sky observation of galaxies, star clusters and nebulae,as well as lunar and planetary observing. This makes for a very useful and versatile instrument that can take an observer from the very first time looking through a telescopes eyepiece, through years of observing interesting subjects near and far in the night sky. Celestron offers five different 114mm Newtonian equatorial telescopes, making it a sure bet that one of them will have just the combination of features and performance youre looking for.

Tabletop 76

76mm (3") Aperture Focal Length of 600mm Focal Ratio of f/8 Standard.96" Accessories Include: 20mm H Eyepiece (30x), 4mm SR Eyepiece (150x) and 2x Barlow Lens 5x24 Right Angle Finderscope
This ultra portable telescope is ideal for traveling or for setting up quickly anywhere. A handy but sturdy table tripod mount provides steady viewing. This compact telescope is small but powerful study lunar details, Saturn and its rings, Jupiter and its belts and moons, and hundreds of deep-sky object including galaxies, nebulae and star clusters.

#31034

Firstscope 76-AZ

#31030

Firstscope 76-EQ

#31031

The Firstscope 76 is a fine instrument for the beginning observer. It offers many of the advantages of the Newtonian design at a 3" aperture. The optical tube is glossy white. The superb optics of this telescope offer dazzling images of the moon; Saturn and its rings; Jupiter, with its belts and moons; and hundreds of deep-sky objects, including galaxies, nebulae and star clusters. Celestron offers two different Firstscope 76s: the altazimuth mount (AZ) and the equatorial mount (EQ). The economical altazimuth is the simplest type of mount, offering two motions: altitude (up and down) and azimuth (sideto-side), for an easily achieved full range of motion. The altazimuth mount includes a slow motion control rod for easy vertical adjustments. The equatorial model (EQ) uses the German equatorial mount with setting circles and slow motion controls on both the right ascension (R.A.) and declination (DEC.) axes. These features make it easier to locate and track objects. While observing, youll notice that as the earth rotates on its axis, stationary stars appear to move across the sky. Thus, due to the earths rotation, the object youre viewing will drift out of view in both axes, over time. A telescope on an equatorial mount can be aimed at a celestial object and guided with the slow motion controls to follow the object across the sky and keep it in the field of view of your telescope. Standard Features of the Firstscope 76s:

C114-HD
114mm (4.5") Aperture Focal Length of 900mm and Focal Ratio of f/8 Standard 11/4" Accessories Include: 20mm Plssl Eyepiece (45x) and Focuser 6x30 Finderscope CG-4 EQ Mount Sturdy, Adjustable Aluminum Tripod with Accessory Tray Weight: 28 lbs.
The premium optics of this heavy duty telescope are manufactured to Celestrons uncompromising standards. The star images are classic textbook Airy disks. The C114-HD (Model #31027) is mounted on the CG-4 mount, a very rigid German equatorial mount. A counterweight, latitude scale, setting circles and slow motion controls on both axes are standard, so you have a fully loaded telescope right from the start. This heavy duty 114mm Newtonian stands out from the other 114mm telescopes on the market by having by far the best mount.

#31027

N E W T O N I A N R E F L E C T O R T E L E S C O P E S:

Dobsonian Models

The Dobsonian reflector telescope is a relatively recent design that places all the performance of the Newtonian reflector design on a simple altazimuth mount. Celestrons Dobsonian design, the Star Hopper, is great for beginners because its very easy to use and quite economical, yet has advanced features even an experienced observer will appreciate. Star Hopper 41/2:
114mm (4.5") Aperture Focal Length of 910mm Focal Ratio of f/8 Standard 11/4" Accessories: 25mm SMA Eyepiece (36x) and Focuser 5x24 Finderscope Weight: 20 lbs.
Celestrons Star Hopper 41/2" is a unique, small Dobsonian telescope thats great for both your own use and for gift-giving. To offer ease of use, right from the beginning, the mount and telescope tube are shipped fully assembled in one box, ready to go immediately. Larger Star Hoppers: 6" (152mm) f/8 8" (203mm) f/6 11" (279mm) f/4.5 14" (356mm) f/4.5 171/2" (445mm) f/4.1 Focal Focal Focal Focal Focal Length Length Length Length Length 1220mm 1220mm 1255mm 1600mm 1825mm Weight Weight Weight Weight Weight 44 lbs. 62 lbs. 95 lbs. 135 lbs. 225 lbs.
The 6" to 171/2" Star Hoppers have these Standard Features:
Precision annealed Pyrex primary mirrors better than glass used by competitors, ensure faster temperature stabilization and the highest quality steady optical figure. 25mm SMA Wide Angle Eyepiece 11/4" 11/4" Rack and Pinion Focuser 6" and 8" 2" Helical Focuser with 11/4" Adapter 11", 14", 171/2" Premium Quality, Affordably Priced Optics are diffraction limited. Multi-Coated Primary Mirrors 6" and 8" have a Unique Balance System. Teflon and Nylon surfaces guarantee smooth performing mechanics. Collimation Tool very useful and unique to Celestron Made in the U.S.A.
Left to right 11", 6", 171/2", 14", 8", 4 1/2"

#10400-N

#10800-N
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S CHMIDT-C ASSEGRAIN T ELESCOPES
Celestron has long been recognized as a leader in Schmidt-Cassegrain technology. Our line of Schmidt-Cassegrain telescopes ranges from the highly portable C5+ all the way up to the powerful CG-14, and includes several cutting edge computerized telescopes. Celestrons potent combination of superior optics, fine drive systems and well-crafted mechanics puts these telescopes in a class by themselves. Schmidt-Cassegrain, or catadioptric, telescopes use a combination of mirrors and lenses to fold the optics and form an image. Incoming light enters through a thin aspheric Schmidt correcting lens, then strikes the spherical primary mirror and is reflected back up the tube. The light is then intercepted by a small secondary mirror which reflects the light out an opening in the rear of the instrument, where the image is formed at the eyepiece.
Some of the advantages of the Schmidt-Cassegrain design are: Excellent optical systems delivering razor sharp images over a wide field. High performance in almost all situations; terrestrial viewing and photography; lunar, planetary and deep-sky observing; astrophotograpy with fast film; CCD imaging. Best all-around, multifunction telescope design; it combines all the optical advantages of both mirrors and lenses, while canceling their disadvantages. Focal ratios generally in the range of f/10, which is useful for all types of photography. A telescope thats compact, portable, easy to use, durable, virtually maintenance free and has a closed tube. The best near focus capability of any type of telescope design. Large apertures at quite reasonable prices. Many accessories available. Schmidt-Cassegrain telescopes are designed to meet many needs and these compact, portable, user-friendly telescopes have a strong following. At Celestron, we pride ourselves on producing consistently superior optics and earning our customers devotion to the Schmidt-Cassegrain telescope. Each optical system is individually hand figured and guaranteed to be diffraction limited. Fine corrections are made on the secondary mirrors, that smooths the optical figure. To maintain tight quality control, each Celestron SchmidtCassegrain telescope is manufactured in the U.S.A.
Hand figuring of an optical system is a complex optical procedure done only on a commercial basis by Celestron. The art of hand figuring does take time but the results are easily evidenced by the superior resultant astrophotographs and viewing obtained. Celestrons optical testing is performed on double-pass auto-collimators in a temperature controlled environment. This ensures the highest quality on a consistent basis. Our commitment to the most careful optical fabrication and most stringent testing and quality control is for one purpose: to produce the very best Schmidt-Cassegrain telescopes available anywhere. All Celestron Schmidt-Cassegrain telescopes utilize the multicoated Starbright coatings group. High Reflectivity (HR) coatings are used on the mirrors for increased reflectivity and Anti-Reflection (AR) coatings are used on the correcting lens for increased light transmission. In fact, Celestrons Starbright coatings provide the best light transmission by a large margin over the competition, according to Sky & Telescope magazine. In addition, the optical systems are optimally baffled to ensure the highest contrast levels. To provide consistent customer satisfaction and high performance, all Celestron Schmidt-Cassegrain optical assemblies, at each aperture size, utilize the same superior optics, whether in a basic or full featured model.

C8 Photo

5" (127mm) Aperture Focal Length of 1250mm Focal Ratio of f/10 Standard 11/4" Accessories Include: 25mm SMA Eyepiece (50x), Star Diagonal and Visual Back 6x30 Finderscope Unique Single-Arm Fork Mount with Carrying Handle Weight: 23 lbs. Made in the U.S.A.
For astronomy on the go, the C5+ cant be beat. Due to its excellent SchmidtCassegrain design and careful crafting, this telescope is a serious, high performance instrument, and its compact size makes it really portable. The total weight of the C5+, with wedge, is just 23 lbs., making it easy to transport. The C5+ can be equipped with many optional accessories to customize it for your particular observing interests. The C5+ boasts a light gathering ability which exceeds that of a 31/2" telescope by 100% and that of a 4" telescope by 50%, giving you a very powerful instrument. The C5+ offers views of intriguing lunar details and high power planetary viewing. You can see detail in Jupiters equatorial belts, the beautiful ring structure of Saturn and the polar caps of Mars. The C5+ is large enough to observe hundreds of deep-sky objects with ease, fully resolve many globular star clusters, and allow you to enjoy viewing brighter nebulae, double stars and brighter galaxies. The C5+ is made in the U.S.A. and features Celestrons legendary hand-figured, diffraction limited optical system for optical performance you can depend on. The reputation for excellence of this telescope is such that it was chosen by NASA, over all other competitive models, for several recent space shuttle missions.

#11030

The optical system of the C5+ features Starbright coatings. An Astronomy magazine review said, the C5 I tested contained superb optics. At high powers, stars exhibited a clearly defined Airy disk surrounded by a bright first diffraction ring and several successively fainter outer rings. This was a telescope that demonstrated how well SchmidtCassegrain optics can perform and met Celestrons promise of diffraction limited optics. An innovative, rigid single-arm fork mount with carrying handle makes this telescope quite convenient to carry. The spur gear drive has been reengineered and utilizes a rigid polar axle with pre-loaded tapered roller bearings in a sturdy and accurate drive system. The DEC. axis uses two pre-loaded ball bearings for smooth, rigid movement. All controls on the mount are precision engineered and manufactured. Sky & Telescope magazine said, the C5 has the smoothest focusing control I have ever used on a Schmidt-Cassegrain telescope. The DC electronics of the C5+ have a built-in drive controller, activated with an optional hand control. The R.A. motors main tracking speed is an accurately regulated sidereal rate. The hand control allows fast and slow override of the R.A. tracking speed and operation of the optional DEC. motor. A comment from the Sky & Telescope review the digital electronics delivered a near perfect sidereal tracking rate. The C5+ is powered by a 9 volt alkaline battery and runs for 50 hours. The C5+ can be operated in both the Northern and Southern hemispheres (optional hand controller required). This telescope is also an ideal choice for astrophotography and CCD imaging. Youll find that the C5+ is truly a multipurpose instrument an astronomical telescope, a spotting scope and a 1250mm f/10 telephoto lens all rolled into one instrument. Because the C5+ can perform so many functions, it has a quick release tube assembly and unique dovetail mounting system with safety locks, to move from one task to another with ease. The six lb. optical tube assembly can be removed from the fork tine, without tools, in just seconds. Next, it can be mounted to a rigid photo tripod for terrestrial applications, such as bird watching, nature study, enjoying distant vistas or for use as a 1250mm telephoto lens. Its near focus is just 20 feet, so subjects both near and far can be observed. The C5+ can even be converted to a computerized telescope with optional accessories. The standard equatorial wedge supplied with the C5+ has a built-in bubble level and is adjustable from 0 to 90.

8" (203mm) Aperture Focal Length of 2032mm Focal Ratio of f/10 Standard 11/4" Accessories Include: Two Eyepieces 25mm HM (81x) and 8mm H (254x), Star Diagonal and Visual Back 6x30 Finderscope CG-5 EQ Mount Sturdy Adjustable Aluminum Tripod with Accessory Tray Weight: 45 lbs. Optical tube Made in the U.S.A.
If youre looking for a superior first telescope with a traditional German equatorial mount or want to move up to a larger aperture telescope, consider the G-8 telescope (Model #11023) which is mounted on the CG-5 EQ mount, the newest generation of Celestrons German mounts. Both axes of the equatorial mount have precision worm gears for extremely smooth motion. This heavy duty mount delivers jitter-free images easily and the adjustable height, very rigid tripod has excellent damping characteristics and a convenient accessory tray. Included are setting circles on both axes, slowmotion controls and latitude scale. An adjustable counterweight makes it easy to point, balance and use. The G-8 optical system comes with Starbright coatings and its large aperture offers light gathering power 843 times that of the human eye. An optional polar alignment scope for fast polar alignment as well as a motor drive is available for easy tracking.

#11023

Celestar 8
8" (203mm) Aperture Focal Length of 2032mm Focal Ratio of f/10 Standard 11/4" Accessories Include: 25mm SMA Eyepiece (81x), Star Diagonal and Visual Back 6x30 Finderscope Fork Mount and Celestrons Unique Wedgpod Weight: 37 lbs. Made in the U.S.A.
The Celestar 8 is engineered for unsurpassed optical performance in an affordable, full featured Schmidt-Cassegrain telescope of large enough aperture to do serious deep-sky observing. This telescope is carefully crafted and manufactured in the U.S.A. for dependable quality of the highest caliber. It offers the lowest price ever for a Celestron fork mounted 8" telescope. The Celestar 8 has earned a well deserved reputation for reliability and consistently superior diffraction limited optics. The DC powered electronics are the same as those supplied with Celestrons C5+ telescope, ensuring exquisitely accurate sidereal rate tracking. A hand controller is an available option for fast and slow override of R.A. tracking speed and operation of the optional DEC motor. The totally cordless electronics have a built-in drive corrector, which is activated when using the optional hand controller. The Celestar 8 is powered by 9 volt alkaline batteries and runs for fifty hours of uninterrupted viewing. Versatility is added by the fact that the Celestar 8 can operate in both the Northern or Southern hemispheres from 0 to 90. Southern Hemisphere operation requires the optional hand controller. The highly regarded spur gear drive utilizes a rigid polar axle with pre-loaded tapered roller bearings in a sturdy and accurate drive system. Celestrons unique Wedgpod is a combination wedge and tripod with a fixed height of 33". Its lightweight for portability without sacrificing stability. The Celestar 8 can even be converted to a computerized telescope with optional accessories.

#11015

Celestar 8 Deluxe
8" (203mm) Aperture Focal Length of 2032mm Focal Ratio of f/10 Standard 11/4" Accessories Include: 26mm Plssl Eyepiece (78x), Star Diagonal and Visual Back 9x50 Finderscope Hand Controller Standard Fork Mount Wedge and Tripod Weight: 40 lbs. Made in the U.S.A.
This telescope utilizes the same superior optics used in all of Celestrons 8" Schmidt-Cassegrain telescopes and has all of the features of the Celestar 8, but is enhanced, for those who prefer a premium version of the spectacular Celestar 8. This model has a heavier duty fork mount and drive base, with a worm gear drive system. Superior tracking accuracy is attained with this drive system, which has four tracking rates and PEC (periodic error correction). For the kind of versatility that makes observing a pleasure, the hand controller makes available a micro guide rate of.5x sidereal and a slew rate of 8x sidereal. The stepper motor drive electronics are cordless and operate on two 9 volt batteries. The Celestar 8 Deluxe has many features that are necessary for the more serious amateur astronomer, particularly if youre interested in astrophotography or CCD imaging. The standard accessories for this telescope include: a declination motor, car battery adapter, hand controller and a tripod thats exceptionally rigid and sturdy, with adjustable height. The Celestar 8 Deluxe telescope can be converted to a computerized telescope with optional accessories.

#11017 with AAM

Celestar 8 Computerized

#11016

The Celestar 8 Computerized telescope is the same telescope as the Celestar 8, with the addition of a factory installed and tested Advanced Astro Master. The Advanced Astro Master pointing system contains a database of over 10,000 objects. Once aligned, it will guide you to any one of these objects. Included are: the entire RNGC catalog, the Messier catalog, selected objects within the IC catalog, major planets, and over 241 interesting double and multiple stars. In addition, theres a catalog available with room for 25 different objects of your choice, so you can return easily to your favorite objects whenever youre observing. The Advanced Astro Master goes a step further in making observing simple by eliminating the need to polar align, or enter longitude or time. Scrolling descriptions of each object you choose to view are displayed and the pointing system guides you from object to object, then immediately aligns on the object you choose to observe. The 16 character LED readout provides object coordinates, magnitude, type, common name, constellation and additional description for each object viewed. The Advanced Astro Master also contains a RS-232 serial interface to allow usage of popular PC computer programs, such as The Sky by Software Bisque.
Celestar 8 Deluxe Computerized

#11018

The Celestar 8 Deluxe Computerized telescope is the same telescope as the Celestar 8 Deluxe, but with the addition of Celestrons Advanced Astro Master. This exceptional telescope has all of the very best features offered by Celestrons Celestar 8 series. Its the perfect choice for the astronomer who wants it all and demands the very best. Optical excellence, a smooth functioning and highly accurate worm gear drive system, stepper drive motor electronics and the Advanced Astro Master add up to a telescope youll be proud to own and use.

Advanced Astro Master

Ultima 2000 8"
8" (203mm) Aperture Focal Length of 2032mm Focal Ratio of f/10 Standard 11/4" Accessories Include: Multicoated 26mm Plssl Eyepiece (78x), Star Diagonal and Visual Back 9x50 Finderscope Heavy Duty Fork Mount and Adjustable Metal Tripod Hand Controller with LED Display Star Charts Included Weight: 39 lbs. Made in the U.S.A.
Twelve years ago, Celestron was the first company to offer computer driven, go to telescopes. Celestron now offers the Ultima 2000, an 8" Schmidt-Cassegrain computer driven telescope. Every facet of this telescope has been carefully engineered using the most sophisticated computer design tools. The best expertise available in the industry was brought to bear on the design of the Ultima 2000. This expertise was combined with a substantial amount of input from customers, astronomers, and telescope dealers and distributors to create a computerized telescope with spectacular performance. Although this is a highly sophisticated telescope, its also extremely simple to use. All you have to do is find two alignment stars, easily located on the star charts provided, and the adventure begins! The database contains over 10,000 deep-sky objects and has room for 25 user-defined objects and planets, for easy locating of your favorite subjects. Also, a special feature allows you to view your fifteen favorite subjects by season, automatically. All of these user-friendly features make this telescope a delight to use.

#11010

The Ultima 2000 has altazimuth operation and an incredible 15 per second fast slewing speed. The motors operate very quietly and have five useful speeds: 15 per second, finder speed at 3 per second, 6x sidereal, 2x sidereal or 50% of sidereal. The telescope also boasts four built-in tracking rates: sidereal, King, lunar and solar. All Ultima 2000 functions are easily performed using the convenient hand controller, which is a standard accessory of this telescope. Fully enclosed optical encoders are used for position location, so if you move the telescope manually, it still knows where its at. The universal standard 12 volt system of the Ultima 2000 runs off of eight AA alkaline batteries for 24 hours, under normal usage. A built-in voltmeter keeps you apprised of battery condition while the telescope is in use. The clock drive is state-of-the-art in design with a worm gear drive. The rigid fork mount design has unsurpassed stiffness for complete reliability. The disc clutch manual motion is fully adjustable in both axes and is very smooth. The 9" pre-load plate bearing ensures superior stability. For easy portability, the fork mount has carrying handles on both tines. The astrophotography/CCD imaging potential offered by the Ultima 2000 is quite remarkable. All you need to add is an optional equatorial wedge and a few accessories, and you have one of the best amateur astrophotography/CCD imaging set-ups available. The built-in drive corrector is a standard feature. For even greater versatility, use the Ultima 2000s RS-232 port to control the telescope via PC computer. The telescope itself is very rigid, but quite portable, at 28 lbs. (39 lbs. with tripod).

#11035

Ultima 11
11" (279mm) Aperture Focal Length of 2800mm Focal Ratio of f/10 Standard 11/4" Accessories Include: Multicoated 26mm Plssl Eyepiece (108x), Star Diagonal and Visual Back 9x50 Finderscope Hand Controller Adjustable, Rigid Metal Tripod, Heavy Duty Wedge and Deluxe Latitude Adjuster Weight: 80 lbs. Made in the U.S.A.
The Ultima 11 has all of the features and performance of the Ultima 91/4, but at an 11" aperture. This size aperture allows for easy high power viewing and incredible images of a huge array of deep-sky objects. At the same time, the compact SchmidtCassegrain design makes this powerful telescope portable enough to load in your car and take out to your favorite observing sites. Further, this design is user-friendly, so even a beginner can enjoy using a large telescope. The images captured by this versatile telescope are superb, due to optics designed to perform flawlessly. The drive system is the same as that of the Ultima 91/4, so a high degree of accuracy is a given. And, the Advanced Astro Master is an optional accessory that will allow you to computerize the telescope easily.

#11044

11" (279mm) Aperture Focal Length of 2800mm Focal Ratio of f/10 Standard 11/4" Accessories Include: Multicoated 26mm Plssl Eyepiece (108x), Star Diagonal and Visual Back 9x50 Finderscope Hand Controller Standard Rugged Adjustable Height Aluminum Tripod German Equatorial Mount Weight: 100 lbs. Made in the U.S.A.
The CG-11 provides a significant 21% increase in light gathering ability over 10" telescopes, and 89% more than that of 8" telescopes. Your expectations will be more than met by the visual and photographic performance of the CG-11 telescope, and we feel certain youll agree with the assessment of Sky & Telescope magazine when they said, function and beauty merge in the Celestron CG-11. Both axes are driven by a 5.6" diameter, 360tooth worm gear. The CG-11 R.A. and DEC. assemblies incorporate four ball bearings each and the diameter of the setting circles is 5". The equatorial head of the CG-11 telescope weighs 31 lbs. and the rugged aluminum tripod has sturdy 3" diameter legs and weighs 21 lbs. The tripod legs are 48" long and the height is adjustable. The latitude range of the instrument is 12 to 64. A 22 lb. counterweight comes standard with the CG11 telescope. When using heavier optional accessories, additional counterweights may be necessary. As with the CG-91/4 and CG-14 telescopes, the CG-11 is manufactured with pride in the U.S.A.

#11054

14" (356mm) Aperture Focal Length of 3910mm Focal Ratio of f/11 Standard 11/4" Accessories Include: Multicoated 26mm Plssl Eyepiece (150x), 2" Mirror Diagonal with 11/4" Adapter and a Visual Back 9x50 Finderscope Hand Controller Standard Rugged Adjustable Height Aluminum Tripod German Equatorial Mount Weight: 135 lbs. Made in the U.S.A.

The CG-14 is the largest of Celestrons CG model Schmidt-Cassegrain telescopes, and is most impressive in performance. The large 14" aperture offers 306% more light gathering ability than an 8" telescope does and 96% more than a 10" telescope. Lunar and planetary details are extraordinary when viewed through this instrument, and the large aperture and superb optics of the CG-14 make for very exciting deep-sky observing of diffuse and planetary nebulae, open and globular star clusters, galaxies and binary stars. The CG-14 is a professional quality instrument thats portable enough to transport easily for serious astronomical work, wherever that may take you. The optical performance of this telescope fully supports scientific research and for viewing pleasure, it cant be beat. In addition, some of the finest amateur astrophotographs have been taken with the CG-14, making this telescope the top choice of many serious astronomers. The mount and tripod supplied with the CG-14 are the same as those of the CG11, with the addition of two 22 lb. counterweights for the CG-14 model.

#11062

C ELESTRONS O NE Y EAR L IMITED WARRANTY
A. Celestron International (CI) warrants its telescopes to be free from defects in materials and workmanship for one year. CI will repair or replace such product or part thereof which, upon inspection by CI is found to be defective in materials or workmanship. As a condition to the obligation of CI to repair or replace such product, the product must be returned to CI together with proof-of-purchase satisfactory to CI. B. The proper Return Authorization Number must be obtained from CI in advance of return. Call Celestron at (310) 328-9560 to receive the number to be displayed on the outside of your shipping container. All returns must be accompanied by a written statement setting forth the name, address and daytime telephone number of the owner, together with a brief description of any claimed defects. Parts or product for which replacement is made shall become the property of CI. The customer shall be responsible for all costs of transportation and insurance, both to and from the factory of CI, and shall be required to prepay such costs. CI shall use reasonable effort to repair or replace any telescope covered by this warranty within thirty days of receipt. In the event repair or replacement shall require more than thirty days, CI shall notify the customer accordingly. CI reserves the right to replace any product which has been discontinued from its product line with a new product of comparable value and function. This warranty shall be void and of no force of effect in the event a covered product has been modified in design or function, or subjected to abuse, misuse, mishandling or unauthorized repair. Further, product malfunction or deterioration due to normal wear is not covered by this warranty. CI disclaims any warranties, express or implied whether of merchantability or fitness for a particular use, except as expressly set forth herein. The sole obligation of CI under this limited warranty shall be to repair or replace the covered product, in accordance with the terms set forth herein. CI expressly disclaims any lost profits, general, special, indirect or consequential damages which may result from breach of any warranty, or arising out of the use or inability to use any CI product. Any warranties which are implied and which cannot be disclaimed shall be limited in duration to a term of one year from the date of original retail purchase. Some states do not allow the exclusion or limitation of incidental or consequential damages or limitation on how long an implied warranty lasts, so the above limitations and exclusions may not apply to you. This warranty gives you specific legal rights, and you may also have other rights which vary from state to state. CI reserves the right to modify or discontinue, without prior notice to you, any model or style of telescope. If warranty problems arise, or if you need assistance in using your telescope contact: Celestron International Customer Service Department 2835 Columbia Street, Torrance, CA 90503 (310) 328-9560, Fax (310) 212-5835 Monday - Friday 8 a.m. - 4 p.m. PST This warranty supersedes all other product warranties. NOTE: This warranty is valid to U.S.A. and Canadian customers who have purchased this product from an authorized CI dealer in the U.S.A. or Canada. Warranty outside the U.S.A. and Canada is valid only to customers who purchased from a CI International Distributor or Authorized CI Dealer in the specific country. Please contact them for any warranty service.

A BOUT C ELESTRON INTERNATIONAL
Celestron defines the cutting edge where superior optics and design, new technology and old fashioned values merge. The result is innovation built on a solid foundation. Honesty, integrity and fairness arent mere words at Celestron. They are the core of our approach to business, realized in a full line of quality products designed to offer affordable exploration of the stars, in strong customer service, and in tough quality standards. Celestron means first-rate designs and craftsmanship that will eclipse your expectations. Precision assembly and meticulous attention to detail by our craftspeople ensure that you receive the highest possible quality. It is this superior assembly that guarantees hour after hour of easy and comfortable use. Our goal at Celestron is to manufacture the best telescopes in the world, and in the forty years weve been in business, weve earned the reputation of providing affordable optical excellence. Its this well-deserved reputation for excellence that make Celestron the first choice in telescopes around the world. Recommended by amateurs, professionals and educators alike, Celestron is the choice for reliability, exceptional performance and customer satisfaction. If youre already a Celestron customer, youve experienced the satisfaction of knowing youve obtained the ultimate in optical precision and mechanical execution. If youve new to Celestron, we invite you to learn more about our products, so you can choose the one thats right for you.

C ONSIDERATIONS

CH O O S I N G

T ELESCOPE

Celestron offers a full line of telescopes, and at least one of them is the perfect choice for you, given your particular interests, preferences, budget considerations and viewing conditions. Choosing the right telescope will enhance your viewing experience, and if youre a beginning observer, it will help you to get a good start in astronomy. To assist you in making a choice youll be happy with, this catalog offers a wealth of information, from telescope basics to specific details about each Celestron telescope. There are three basic commercial telescope designs: refractor, Newtonian reflector and Schmidt-Cassegrain. Celestron offers a range of excellent choices within each of these categories of telescope types. These sections include information on the design, function and the unique advantages, in turn, of refractor, Newtonian reflector and Schmidt-Cassegrain telescopes. Following the specifics on each telescope type are descriptions of all the Celestron instruments which fall within that particular design category. This should give you a good foundation of knowledge from which to shape your decision. Contact your Celestron dealer to answer any questions you may have and to demonstrate the Celestron telescopes that interest you the most. Celestron also offers the informative brochure Telescopes for Astronomy (item #94114) for those interested in exploring telescopes and their functions further. Please request a copy. We encourage you to examine our products carefully. Celestron telescopes provide a long term investment in quality and satisfaction, whatever your interests in astronomical or terrestrial viewing may be. Choosing the right telescope will give you years of observing enjoyment. Celestron has all the optional accessories youll want, whichever telescope you choose. Whether your interest is in planetary, lunar, solar or deep-sky observing or photography, accessories can expand the performance of your telescope. As your interests grow. Celestron accessories will allow your telescope to grow with you and take you into exciting new realms of astrophotography, CCD imaging, terrestrial observing and photography, and celestial adventure. Celestrons accessories are described in our Accessories Catalog (#93685).

C11 Photo

Celestron International
2835 Columbia Street Torrance, CA 90503 (310) 328-9560 (310) 212-5835 Web site at http://www.celestron.com
#93714-98 $2.Celestron International

Model # 31032

FIRSTSCOPE 76 3" NEWTONIAN EQUATORIAL TELESCOPE

Model # 31044

FIRSTSCOPE 114 EQ 4.5" NEWTONIAN TELESCOPE

Model # 31041

FIRSTSCOPE 114 SHORT 4.5" NEWTONIAN EQUATORIAL TELESCOPE

INSTRUCTION MANUAL

Equatorial Model

Figure 1

IDENTIFYING PARTS OF FIGURE 1
1. 2. 3. 4. 5. 6. 7. 8. 9. Front Cell (open part of tube) Secondary Mirror (inside) Star Pointer Finderscope Star Pointer Adjustment Knob (Altitude) Star Pointer Bracket Star Pointer Adjustment Knob (Azimuth) Eyepiece Eyepiece Adapter Focusing Knob 22. Declination Knob 23. Declination Setting Circle 24. Right Ascension Knob 25. Right Ascension Setting Circle 26. Front Lens Cover 27. Right Ascension Cable Holder 28. Horizontal Adjustment Knob 29. Counterweight Shaft 30. Counterweight 31. Right Ascension Cable 32. Tripod Accessory Tray 33. Equatorial Mount 34. Tripod Mounting Hardware 35. Tripod Leg Tips 36. Counterweight Lock 37. Finderscope Bracket Mounting Screws 38. Tripod Head 39. Safety Washer for Counterweight 40. Bolts for Tube Mount Bracket 41. Saddle Bracket
10. Focusing Tube 11. Telescope Optical Tube 12. Telescope Tube Mounting Hardware 13. Declination Cable Holder 14. Primary Mirror Cell (inside) 15. Collimation Adjustment Screws 16. Polar Axis Knob 17. Latitude Scale 18. Declination Cable 19. Collapsible Center Leg Brace 20. Tripod Legs 21. Telescope Tube Mount Bracket

1. INTRODUCTION

Thank you for purchasing this Celestron Newtonian Telescope. This telescope is a precision scientific instrument. With it you will enjoy numerous objects in the skyplanets, nebulae, star clusters, galaxies and other astronomical objects. This manual covers both the 76mm equatorial mount model and the 114mm models. The equatorial mount contains setting circles and slow motion cables to make it easier to locate and track astronomical objects. But, before your journey begins take time to read this manual to familiarize yourself with the operation and parts of your telescope. WARNINGNEVER LOOK AT THE SUN WITH YOUR TELESCOPE OR ITS FINDERSCOPE. PERMANENT AND IRREVERSIBLE EYE DAMAGE MAY RESULT AS WELL AS DAMAGE TO YOUR TELESCOPE. HOWEVER, YOU MAY ENJOY LOOKING AT THE SUN IF YOU HAVE A SAFE METHOD OF DOING SO, SUCH AS A CELESTRON SOLAR FILTER.

2. TELESCOPE ASSEMBLY

Please refer to Figure 1 (and the identifying parts list) as you assemble the telescope. A. The telescope and all items are packed in one box. Included with all models are: Telescope Optical Tube German Equatorial Mount Adjustable Tripod Star Pointer Finderscope and Bracket Counterweight Shaft and Counterweight Tripod Accessory Tray Declination Cable Right Ascension Cable 20mm Eyepiece - 1" 10mm Eyepiece - 1" The Sky CD-ROM
To set up the tripod, locate the German equatorial mount, the tripod legs, the tripod mounting hardware and the tripod accessory tray. 1. 2. Extend the center portion (#35) of each of the three tripod legs down 6-8". Use the three tightening screws (#34) to secure each of the extended legs by threading these screws through the holes in the brackets at the bottom of each leg. It is important that you extend the legs before the equatorial mount is attached, otherwise the inner legs may become difficult to slide down. Fine tuning of the tripod height can be done later, and the tightening screws can be adjusted to secure the telescope at the desired height

3. 4. 5. 6.

Slide the two top portions of each tripod leg around the sides of each flange on the tripod head (#38) of the equatorial mount, so the flange is secured between them. Slide the screw through the tripod leg and flange, until the screw extends out the other side. Slide the washer and the nut over the screw and tighten. This can be left slightly loose, to allow for positioning the legs later, when attaching the accessory tray. Repeat this process for the remaining two legs. Now the tripod will stand by itself.
You are now ready to attach the tripod accessory tray. 7. The tripod tray fits over the holes in the tripod leg brace. Insert the winged bolts through the holes in the bottom of the tripod leg brace and thread them into the holes in the accessory tray. Tighten all bolts to ensure proper stability to the mount.
B. Before proceeding further, locate Right Ascension (#24) and Declination knobs (#22) and tighten them finger tight. 1. Locate the declination cable holder (#13). Locate the declination cable (the shorter of the two cables) and attach the cable (#18) to the cable holder by tightening the thumb screw on the cable end. The thumb screw should be tightened down hard on the flat surface of the cable holder after backing off the cable about 1/4" from being fully engaged. This method helps ensure there is no slippage when using the cable. You may reverse the position orientation of the Declination cable to suit your preference if desired. Locate the right ascension cable holder (#27). Locate the right ascension cable (#31) and attach it the same way as the declination cable was attached in the last section.
Before mounting the optical tube, the counterweight must be attached to the mount: 1. Slide the counterweight shaft (#29) through the counterweight (#30). Use the counterweight lock to lock the counterweight in place. By holding the counterweight in one hand, thread the counterweight shaft clockwise into the equatorial mount as shown in figure 1.
C. Now you are going to put the telescope optical tube (#11) onto the equatorial mount. For models #31041 and #31044: 1. 2. 3. 4. 5. Slightly loosen the screws that hold the mounting rings on the telescope in place. Slide the rings apart so that each is at the same distance as the holes in the mounting platform. Place the telescope tube on the mount so that the flat portion of the tube rings rest on the mounting platform. Align the holes on the square extrusions with the holes at the ends of the mounting platform. Starting with the ring closest to the focuser end of the tube, insert the bolt through the hole in the mounting platform and thread it into the mounting ring. Repeat this process for the remaining mounting ring.

Tighten the screws that hold the mounting rings in place. This will keep the telescope from sliding back and forth in the mounting rings.
For Model #31032: 1. Remove the nuts from the tube mounting screws located on the bottom of the optical tube. Put the bolts from the tube into the holes in the bracket at the top of the mount and tighten the nuts.
D. To attach the Star Pointer Finderscope: 1. 2. Remove the nuts from the studs where the finderscope will mount (#37). Mount the Star Pointer bracket by placing the bracket over the studs protruding from the tube and tightening it down with the supplied nuts. Orient the Star Pointer so that the glass window is facing towards the front of the tube (see Figure 1).
E. Put a low power eyepiece (#7) into the eyepiece adapter and tighten the thumb screw to hold it in place. The focuser comes with a protective dust cap that must be removed before installing an eyepiece. Remove the dust cap by first removing the focuser thumb screw and pulling the cap out from the eyepiece opening. F. The optical tube also comes with a protective dust cover (#26) that must be remove before using the telescope. To remove the cover, pull the cap straight out from inside opening of the tube.
3. TELESCOPE OPERATION GETTING SET UP
In order to use the equatorial mount's setting circles, the mount must first be aligned with the earth's axis of rotation. A. Loosen the polar axis knob (#16) with one hand while holding the equatorial mount with the other hand. Turn the latitude adjustment knob located at the rear of the mount to adjust the angle of the mount. Look at the latitude scale (#17) and move the mount to the latitude of your location and then tighten the polar axis knob. This only has to be done once unless you take the telescope to a different location. For example, Los Angeles, California is located at about 34. If you do not know your latitude, it can be found on most road atlases of your area. B. To change the direction your telescope is pointing: 1. To move the telescope in declination (north/south) there are two options. For large and quick movements, release the declination knob (#22) and then tighten the knob when you are near the position you want. For very small movements and fine adjustments, use the declination cable (#18). The declination cable has a range of about 30 and if you come to the stop at the end then overshoot your target by releasing the declination knob and move the telescope in declination. Then tighten the knob and reverse the direction of the declination cable. Do not try to force movement when the declination cable has reached the stop. To move the telescope in right ascension (east/west) there are two options. For large and quick movements, release the right ascension knob ( #24) and then tighten the knob when you are near the position you want. For very small movements and fine adjustments, use the right ascension cable (#31).

C. The telescope should be properly balanced in order for it to move smoothly in both axes. Proper balance is essential if using an optional motor drive for accurate tracking. 1. To balance the right ascension axis, move the counterweight shaft so it is parallel (horizontal) to the ground. Slowly release the right ascension knob (#24) and see if the optical tube moves. If the optical tube moves, then slide the counterweight up or down the counterweight shaft until the optical tube remains stationary in the parallel position to the ground. When this happens, make sure the counterweight lock is tight.
To quickly move the telescope around horizontally 1. Loosen the horizontal adjustment knob (#28), move the telescope to the position desired and then tighten the knob.
To align the Star Pointer finderscope: The Star Pointer is the quickest and easiest way to point your telescope exactly at a desired object in the sky. It's like having a laser pointer that you can shine directly onto the night sky. The Star Pointer is a zero magnification pointing tool that uses a coated glass window to superimpose the image of a small red dot onto the night sky. While keeping both eyes open when looking through the Star Pointer, simply move your telescope until the red dot, seen through the Star Pointer, merges with the object as seen with your unaided eye. The red dot is produced by a light-emitting diode (LED); it is not a laser beam and will not damage the glass window or your eye. The star pointer is powered by a long life 3volt lithium battery (#CR2032) located underneath the front portion of the Star Pointer. Like all finderscopes, the Star Pointer must be properly aligned with the main telescope before it can be used. This is a simple process using the azimuth and altitude control knobs located on the side and bottom of the Star Pointer. The alignment procedure is best done at night since the LED dot will be difficult to see during the day. 1. To turn on the Star Pointer, rotate the variable brightness control clockwise until you here a "click". To increase the brightness level of the red dot, continue rotating the control knob about 180 until it stops. Locate a bright star or planet and center it in a low power eyepiece in the main telescope. With both eyes open, look through the glass window at the alignment star. If the Star Pointer is perfectly aligned, you will see the red LED dot overlap the alignment star. If the Star Pointer is not aligned, take notice of where the red dot is relative to the bright star. Without moving the main telescope, turn the Star Pointer's azimuth and altitude alignment controls (#4 & #6) until the red dot is directly over the alignment star.

2. 3. 4. 5.

If the LED dot is brighter than the alignment star, it may make it difficult to see the star. Turn the variable brightness control counterclockwise, until the red dot is the same brightness as the alignment star. This will make it easier to get an accurate alignment. The Star Pointer is now ready to be used. Remember to always turn the power off after you have found an object. This will extend the life of both the battery and the LED.

4. UNDERSTANDING THE SKY

A. The Celestial - Coordinate System.
The celestial-coordinate system is an imaginary projection of the Earth's geographical coordinate system onto the celestial sphere which seems to turn overhead at night. This celestial grid is complete with equator, latitudes, longitudes and poles. The Earth is in constant motion as it rotates on its axis. Actually the celestial-coordinate system is being displaced very slowly with respect to the stars. This is called precession and is caused by gravitational influences from the Sun, Moon and other celestial bodies. The celestial equator is a full 360 circle bisecting the celestial sphere into the northern celestial hemisphere and the southern celestial hemisphere Like the Earth's equator, it is the prime parallel of latitude and is designated 0. The celestial parallels of latitude are called "coordinates of declination (Dec.)", and like the Earth's latitudes they are named for their angular distances from the equator. These distances are measured in degrees, minutes and seconds of arc. There are 60 minutes of arc in each degree, and 60 seconds of arc in each arc minute. Declinations north of the celestial equator are "+" and declinations south are "-". The north pole is +90 and the south pole is -90. The celestial meridians of longitude are called "coordinates of right ascension (R.A.)", and like the Earth's longitude meridians they extend from pole to pole. There are 24 major R.A. coordinates, evenly spaced around the 360 equator, one every 15. Like the Earth's longitudes, R.A. coordinates are a measure of time as well as angular distance. We speak of the Earth's major longitude meridians as being separated by one hour of time because the Earth rotates once every 24 hours (one hour = 15). The same principle applies to celestial longitudes since the celestial sphere appears to rotate once every 24 hours. Right ascension hours are also divided into minutes of arc and seconds of arc, with each hour having 60 minutes of arc and each arc minute being divided into 60 arc seconds. Astronomers prefer the time designation for R.A. coordinates even though the coordinates denote locations on the celestial sphere, because this makes it easier to tell how long it will be before a particular star will cross a particular north-south line in the sky. So, R.A. coordinates are marked off in units of time eastward from an arbitrary point on the celestial equator in the constellation Pisces. The prime R.A. coordinate which passes through this point is designated "O hours O minutes O seconds". We call this reference point the vernal equinox where it crosses the celestial equator. All other coordinates are names for the

number of hours, minutes and seconds that they lag behind this coordinate after it passes overhead moving westward. Given the celestial coordinate system, it now becomes possible to find celestial objects by translating their celestial coordinates using telescope pointing positions. For this you use setting circles (if you have the Firstscope EQ - equatorial mount models) for R.A. and Dec. to find celestial coordinates for stellar objects which are given in star charts and reference books.

Polar Alignment

To make tracking the stars easier, rough polar alignment is required. 1. 2. 3. The right ascension (polar) axis should be pointed towards the North Pole (see the illustration below). The equatorial mount should be level. Your latitude should be set (see 3.A).
To find astronomical objects, you will now mainly use the right ascension axis as the polar alignment virtually eliminates needed adjustments in the declination axis.
To track objects continuously, adjustments will be made with the right ascension cable. When using the telescope, all objects in the sky will slowly drift out of the field of view unless you manually make corrections with the right ascension cable. 5. The above method of polar alignment is adequate for casual observing. More precise methods of polar alignment are available and most astronomy texts or telescope books describe the procedures. If you look at the North Star after this polar alignment procedure, your declination setting circle (#23) should read 90 (the actual is 89.2).
Using the Setting Circles
Setting Circles are dials (or gauges) for right ascension and declination that allow you to locate celestial objects easily from their coordinates as listed in a star chart or atlas.
The declination setting circle is scaled in degrees and the right ascension setting circle is incremented in minutes. The circles will get you close to your target but not directly on it. Also, the accuracy of your polar alignment will affect how accurate your setting circles read. The declination setting circle is factory set and should not need any adjustment if it reads accurately. The right ascension setting circle (#25) must be aligned. Choose a bright and easy to find star in a star chart and note the coordinates (right ascension and declination). Find the star in the Star Pointer and

then in the telescope. Now, rotate the right ascension circle to match the coordinates of the star with the indicator mark. 4. The right ascension setting circle does not move as the telescope moves in right ascension and thus it must by aligned each time you want to use it to find a new object. However, you do not need to use a bright star each time but you can use the object you are currently observing. Now, using a star chart or atlas you can find numerous objects. First move the telescope in declination to the correct declination coordinate. Then move the telescope in right ascension until the indicator points to the correct coordinate. After moving the telescope to the correct celestial coordinates, look through the lower power eyepiece to see if you have located the object you wish to view. Center the object in eyepiece. If the object is not visible in the eyepiece, gradually pan the telescope, using the right ascension and declination cables, until the object is visible.

5. MAGNIFICATION (POWER)

The magnification (or power) of a telescope is variable depending upon the focal length of the eyepiece being used along with the focal length of the telescope. A. If you purchased one of the 76mm diameter models, your telescope has a focal length of 700mm. To calculate the magnification we use the following formula:

Magnification =

FL(telescope) FL(eyepiece)
where FL(telescope) is the focal length of the telescope and FL(eyepiece) is the focal length of the eyepiece. So, if you use a 10mm eyepiece your magnification is 700/10 = 70x. There are numerous optional eyepieces that are available to expand your range of magnification. There are various types of eyepieces of varying quality to choose from. B. Magnification through the telescope has its limits. These limits are determined by the laws of optics and the nature of the human eye. The maximum usable power is equal to 60 times the aperture of the telescope (in inches). For example, if you purchased the 114mm model (4.5") then your maximum useful power is 270x (4.5" x 60). You can create power higher than this limit but the images will be dark and blurred with poor contrast. The maximum power is used only under ideal conditions which are not common. Most of your viewing will be done in the range of 25x to 120x. Higher powers are used mainly for lunar and planetary observing under ideal seeing conditions.
6. TELESCOPE OPERATION ASTRONOMICAL OBSERVING
After you have read and followed the instruction manual to this point, the telescope is set up and you are ready to begin your observing adventure. To enable you to find objects you should have a set of Star Charts or a Planisphere. The location of the planets may appear in local newspapers. A. The Moon is an awesome first object to observe. The best observing occurs during the partial phases as a full Moon is too bright. At low power you can see the complete Moon and at high powers you can see lunar details such as mountain ranges, craters and rills. B. Five of the planets are easy targets for your telescope. See Jupiter with its great red spot, study the cloud bands and watch its moons shuttle back and forth. Study Saturn and its splendid ring structure. Observe Mars and see its polar cap. Watch Venus and Mercury as they go through their moon-like phases.

C. The Sun is quite safe to view if you use the proper solar filter. You can detect and watch the ever-changing sunspot activity. D. Deep-Sky objects (those outside our solar system) offer a lifetime of observing. There are hundreds of objects within the realm of your telescope including open and closed star clusters, planetary and diffuse nebulae, galaxies, double stars and occasional comets. The amount of detail you can see is dependent on your observing site (dark sky rural locations are best), atmospheric conditions, brightness of the object, collimation and your observing experience.

7. TELESCOPE MAINTENANCE

With proper care your telescope should rarely need any maintenance work. A. When not in use, always replace all lens covers to keep dust and contaminants off the optical surfaces. B. A small amount of dust on any optical surface is ok. If the dust builds up then use a can of compressed air and then a camel's hair brush to remove the dust. C. If the mirrors need cleaning, they should be cleaned by a professional. Either have your instrument serviced by a telescope repair facility or return it to the factory. D. Collimation or alignment of the optical system is done at the factory before shipment. 1. If your telescope has received very rough handling during transport or is dropped, it may need collimation. To check if your telescope is in collimation the sketch below will help you. If you look into the eyepiece adapter (without an eyepiece) at the top of the focuser, this is what you should see. If the reflection of your eye is off center, then collimation is necessary.
Adjustments to the collimation of the telescope can be made by turning the collimation adjustment screws (#15) located at the rear of the optical tube. If your telescope is out of collimation, the best way to re-collimate it is with a good collimation tool. Celestron offers a Newtonian Collimation Tool (#94183) with detailed instructions that make it an easy chore.

8. SPECIFICATIONS

Optical System: Aperture: Focal Length: F/ratio: Focuser Standard Oculars (or Eyepieces) Resolution Light gathering Power Limiting Magnitude Highest useful Power
#31032 Newtonian Reflector 76mm (3") 700mm f/9 Rack and Pinion 20mm 1" (35x) 10mm 1" (70x) 1.5 arc seconds 118x unaided eye 11.9 180x #31044 Newtonian Reflector 114mm (4.5") 900mm f/8 Rack and Pinion 20mm 1" (45x) 10mm 1" (90x) 1.0 arc seconds 267x unaided eye 12.8 270x #31041 Newtonian Reflector 114mm (4.5") 1000mm f/9 Rack and Pinion 20mm 1" (50x) 10mm 1" (100x) 1.0 arc seconds 267x unaided eye 12.8 270x

NOTE: Specifications are subject to change without notice.

9. OPTIONAL ACCESSORIES

Celestron International offers a wide assortment of optional accessories to expand your interests.
Eyepieces - Like telescopes, eyepieces come in a variety of designs. Each design has its own advantages and disadvantages. For the 1-1/4" barrel diameter there are four different eyepiece designs available. OMNI Plssl - Plssl eyepieces have a 4-element lens designed for low-to-high power observing. The Plssls offer razor sharp views across the entire field, even at the edges! In the 1-1/4" barrel diameter, they are available in the following focal lengths: 4mm, 6mm, 8mm, 12.5mm, 15mm, 20mm, 25mm, 32mm and 40mm. Ultima - Ultima is not really a design, but a trade name for our 5element, wide field eyepieces. In the 1-1/4" barrel diameter, they are available in the following focal lengths: 5mm, 7.5mm, 12.5mm, 18mm, 24mm, 30mm, 35mm, and 42mm. These eyepieces are all parfocal. The 35mm Ultima gives the widest possible field of view with a 1-1/4" diagonal. Moon Filter (#94119-A) - Celestrons Moon Filter is an economical eyepiece filter for reducing the brightness of the moon and improving contrast, so greater detail can be observed on the lunar surface. The clear aperture is 21mm and the transmission is about 18%. Motor Drive (#93515) - Motor drives compensate for the earth's rotation keeping an object in the eyepiece field of view. This makes observing much more enjoyable and eliminates the constant use of the manual cables. Models available for all equatorial mounts. Planisphere (#93720) - A simple and inexpensive tool for all levels of observers, from naked eye viewers to users of highly sophisticated telescopes. The Celestron Planisphere makes it easy to locate stars for observing and is a great planet finder as well. A map of the night sky, oriented by month and day, rotates within a depiction of the 24 hours of the day, to display exactly which stars and planets will be visible at any given time. Ingeniously simple to use, yet quite effective. Made of durable materials and coated for added protection. Celestron Planispheres come in three different models, to match the latitude from which youre observing: Solar Filters (#94133) - The Celestron AstroSolar filters are safe and allow you to see sunspots as they move across the solar disk. Models available for 76mm and 114mm (#94134) telescopes. T-Adapter (#94177) - T-Adapter (with additional T-Ring) allows you to attach your SLR camera to the rear cell of your Celestron telescope. This turns your telescope into a high power telephoto lens perfect for terrestrial photography and short exposure lunar and filtered solar photography.
A full description of all Celestron accessories can be found in the Celestron Accessory Catalog (#93685).
CELESTRON TWO YEAR WARRANTY
A. Celestron warrants this telescope to be free from defects in materials and workmanship for two years. Celestron will repair or replace such product or part thereof which, upon inspection by Celestron, is found to be defective in materials or workmanship. As a condition to the obligation of Celestron to repair or replace such product, the product must be returned to Celestron together with proof-of-purchase satisfactory to Celestron. The Proper Return Authorization Number must be obtained from Celestron in advance of return. Call Celestron at (310) 3289560 to receive the number to be displayed on the outside of your shipping container. All returns must be accompanied by a written statement setting forth the name, address, and daytime telephone number of the owner, together with a brief description of any claimed defects. Parts or product for which replacement is made shall become the property of Celestron. The customer shall be responsible for all costs of transportation and insurance, both to and from the factory of Celestron, and shall be required to prepay such costs. Celestron shall use reasonable efforts to repair or replace any telescope covered by this warranty within thirty days of receipt. In the event repair or replacement shall require more than thirty days, Celestron shall notify the customer accordingly. Celestron reserves the right to replace any product which has been discontinued from its product line with a new product of comparable value and function. This warranty shall be void and of no force of effect in the event a covered product has been modified in design or function, or subjected to abuse, misuse, mishandling or unauthorized repair. Further, product malfunction or deterioration due to normal wear is not covered by this warranty. CELESTRON DISCLAIMS ANY WARRANTIES, EXPRESS OR IMPLIED, WHETHER OF MERCHANTABILITY OF FITNESS FOR A PARTICULAR USE, EXCEPT AS EXPRESSLY SET FORTH HEREIN. THE SOLE OBLIGATION OF CELESTRON UNDER THIS LIMITED WARRANTY SHALL BE TO REPAIR OR REPLACE THE COVERED PRODUCT, IN ACCORDANCE WITH THE TERMS SET FORTH HEREIN. CELESTRON EXPRESSLY DISCLAIMS ANY LOST PROFITS, GENERAL, SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES WHICH MAY RESULT FROM BREACH OF ANY WARRANTY, OR ARISING OUT OF THE USE OR INABILITY TO USE ANY CELESTRON PRODUCT. ANY WARRANTIES WHICH ARE IMPLIED AND WHICH CANNOT BE DISCLAIMED SHALL BE LIMITED IN DURATION TO A TERM OF TWO YEARS FROM THE DATE OF ORIGINAL RETAIL PURCHASE. Some states do not allow the exclusion or limitation of incidental or consequential damages or limitation on how long an implied warranty lasts, so the above limitations and exclusions may not apply to you. This warranty gives you specific legal rights, and you may also have other rights which vary from state to state. Celestron reserves the right to modify or discontinue, without prior notice to you, any model or style telescope. If warranty problems arise, or if you need assistance in using your telescope contact: Celestron Customer Service Department 2835 Columbia Street Torrance, CA 90503 Tel. (310) 328-9560 Fax. (310) 212-5835 Monday-Friday 8AM-4PM PST This warranty supersedes all other product warranties. NOTE: This warranty is valid to U.S.A. and Canadian customers who have purchased this product from an Authorized Celestron Dealer in the U.S.A. or Canada. Warranty outside the U.S.A. and Canada is valid only to customers who purchased from a Celestron Distributor or Authorized Celestron Dealer in the specific country and please contact them for any warranty service.

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