1998CELESTRON Te l e s c o p e s TA B L E O F CO N T E N T S Refractor Te l e s c o p e s . 3 Schmidt-Cassegrain Novice 50 . 4 Te l e s c o p e s . .30 + Novice 60 . 5 C5 . .32 Firstscope 60 . 6 G 8 . .34 Firstscope 60 Deluxe . 6 Celestar 8 . .35 Firstscope 60 Deluxe-Aluminum . 6 Celestar 8 Deluxe . .36 Firstscope 60 Short . 8 Celestar 8 Computerized . .37 Firstscope 60 EQ Short . 8 Celestar 8 Deluxe Computerized . .37 ® Firstscope 60 EQ . .10 Ultima 2000 - 8" . .38 Firstscope 60 EQ Deluxe . .10 CG-91/4 . .40 ® Firstscope 60 EQ Deluxe-Aluminum .10 Ultima 91/4 . .41 ® Firstscope 70 AZ . .12 Ultima 11 . .42 Firstscope 70 EQ . .12 CG-11 . .43 Firstscope 80 AZ . .14 CG-14 . .44 Firstscope 80 EQ . .15 Firstscope 80 EQ WA . .16 Wa rr a n t y . 45 C80-HD . .17 About Celestron International . .46 C102-AZ . .18 Considerations in Choosing C102-HD . .18 a Telescope . .46 Newtonian Reflector Telescopes Tabletop 76 . .21 Firstscope 76-AZ . .22 Firstscope 76-EQ . .22 Firstscope 114 . .24 Firstscope 114 Deluxe . .24 Firstscope 114 Premium . .24 Firstscope 114 Short . .26 C114-HD . .27 Star Hopper 41/2 . .28 Star Hopper 6" • 8" . .28 Star Hopper 11" • 14" •171/2" . .28 C14 Photo Celestron CCD imaging products available in a separate catalog 2 RE F R A C T O R TE L E S C O P E S Refractor telescopes (also known as dioptrics) are probably what most of us think of when we hear the word “telescope.” Refractors have a long, thin tube in which light passes in a straight line from the front objective lens directly to the eyepiece, at the opposite end of the tube. Refractor telescopes have many advantages, including: • Simplicity of design, which translates into reliability and ease of use. • Little or no maintenance re q u i re m e n t s . • Excellent lunar, planetary and binary star v i e w i n g . • High contrast images with no secondary mir- ror or diagonal obstru c t i o n . • Sealed optical tube, to protect the optics and reduce air currents, which tend to degrade image quality. • P e rmanently mounted and aligned objective lens. The 60mm (2.4") refractor is the most popular telescope size for beginning a s t ronomy enthusiasts and for casual gift-giving. This size telescope is perfect for i n t roducing newcomers to astro n o m y, at an aff o rdable price. For astronomical observing, the 60mm refractor allows you to see lunar details, S a t u rn and its rings, Jupiter and its moons, the phases of Venus, larger globular clusters, bright double stars and some bright nebulae. After adding an optional solar filter, you can observe activity on the sun. In addition, a 60mm telescope can be used for terrestrial viewing, bringing the world closer to you and allowing you to observe wildlife, distant views and your enviro n m e n t . The 70mm models serve the beginner to intermediate observer who wants slightly more apert u re than the 60mm models and allows you to see more detail on objects. C e l e s t ro n ’s 80mm and 102mm refractor models are top choices for beginning o b s e rvers who want to start with a more powerful telescope and for interm e d i a t e level astronomers. These instruments perf o rm equally well for viewing within our solar system and for deep-sky observing. Starting with a more powerful tele- scope can be a good option when you’re looking for an instrument to grow with as you explore the hobby of astro n o m y. C e l e s t ron offers two diff e rent options in refractor telescopes: the altazimuth mount and the equatorial mount. The economical altazimuth is the simplest type of mount, offering two motions: altitude (up and down) and azimuth (side- to-side), for an easily achieved full range of motion. Celestron‘s equatorial mod- els use the German equatorial mount with setting circles and slow motion con- t rols on both the right ascension (R.A.) and declination (DEC.) axes. These fea- t u res make it easier to locate and track objects. While observing, you‘ll notice that as the earth rotates on its axis, stationary stars appear to move across the sky. Thus, due to the eart h ’s rotation, the object y o u ‘ re 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. 3 Novice 50 • 50mm (2") Apert u re • Focal Length of 625mm • Focal Ratio of f/12 • S t a n d a rd .96" Accessories Include: 12.5mm H Eyepiece (50x), 8mm H Eyepiece (78x), 2x Barlow Lens, 90° Hybrid Diagonal (Designed to Accept Either .96" or 11/4" Eyepieces) • 5x20 Finderscope • Sturd y, Black Adjustable Wood Tripod with Accessory Tr a y • Weight: 5 Lbs. This beginning telescope is quite economical, but it’s no toy. The optical components are all glass and the images produced are sharp and clear. Fasci- nating lunar details, Saturn and its rings, large, bright deep-sky objects, and Jupiter are all within your grasp with this telescope. The Novice 50 (Model #21051-W) is also an attractive optical instrument, with a glossy white alu- minum tube on an altazimuth mount. #21051-W 4 Novice 60 • 60mm (2.4") Apert u re • Focal Length of 700mm • Focal Ratio of f/12 • S t a n d a rd .96" Accessories Include: 20mm H Eyepiece (35x), 12.5mm H Eyepiece (56x), 6mm SR Eyepiece (117x), 90° Hybrid Diagonal (Designed to Accept Either .96" or 11/4" Eyepieces) • 5x24 Finderscope • S t u rd y, Black Adjustable Wood Tripod with Accessory Tr a y • Weight: 7 Lbs. This telescope (Model #21058) has all glass components and coated optics for superb perf o rmance. The glossy white telescope tube is aluminum and the altazimuth mount is stable. The tripod is rigid, for stability and ease in keep- ing objects in focus while observ i n g . #21058 5 Firstscope 60 Firstscope 60 Firstscope 60 #21055 D e l u x e D e l u x e - A l u m i n u m #21055-DX #21055-DX-AL The standard Firstscope 60 altazimuth telescope series offers three models to choose fro m . This telescope has the same all glass components, coated optics and smooth functioning altazimuth mount as the Novice 60, with the added benefit of a slow motion control rod on the mount for easy vertical adjustments. The Firstscope 60 telescope tube is glossy black aluminum. S t a n d a rd Features on all three models: • 60mm (2.4") Apert u re • Focal Length of 700mm • Focal Ratio of f/12 • 5x24 Finderscope • 90° Hybrid Diagonal (Designed to Accept Either .96" or 11/4" Eye- p i e c e s ) • Weight: 7 Lbs. The Firstscope 60 and the Firstscope 60 Deluxe Feature : • Sturd y, Black Adjustable Wood Tripod with Accessory Tr a y • The Firstscope 60 uses .96" Accessories — 20mm H eyepiece (35x), 6mm SR Eyepiece (117x), 2x Barlow Lens, 1.5x Image Erecting (Te rre s- trial) Eyepiece. • The Firstscope 60 Deluxe accessories are 11/4", rather than .96" in size. These 11/4" accessories provide sharper images, a wider field of view and better eye relief for those looking to invest a little more for an enhanced observing experience. Model #21055-DX includes a 25mm SMA Eyepiece (28x) and a 10mm SMA Eyepiece (70x). • The Firstscope 60 Deluxe Aluminum model (#21055-DX-AL) feature s : • S t u rd y, Adjustable Aluminum Tripod with Accessory Tr a y • 20mm H Eyepiece – 11/4" (35x) and 8mm H Eyepiece – 11/4" (88x) 6 #21055-DX (#21055 similar) #21055-DX-AL 7 Firstscope 60 Short Firstscope 60 EQ Short #21054 #21065 • 60mm (2.4") Apert u re • 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" Eye- p i e c e s ) • 20mm H Eyepiece – .96" (45x) • 8mm H Eyepiece – 96" (113x) • 2x Barlow Lens – .96" • Sturd y, Black Adjustable Wood Tripod with Accessory Tr a y • Weight: 6 Lbs. (Model #21054) 9 Lbs. (Model #21065) These unique short tube refractor telescopes offer the utmost portability yet a re powerful perf o rmers. 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 feature s setting circles and slow motion controls on the R.A. and DEC. axes. These c o n t rols will enhance your viewing experience by simplifying both locating and tracking objects. When you’re looking for a 60mm telescope offering a bit more versatility and c o n t rol than the altazimuth model, this is a good telescope to consider. 8 #21054 #21065 9 Firstscope 60 EQ Firstscope 60 EQ Deluxe #21066 #21066-DX Firstscope 60 EQ Deluxe-Aluminum #21066-DX-AL The standard Firstscope 60 equatorial telescope series offers three models to choose fro m .