Celestron C100ED-R Manuel d'instructions

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10TThhee OOppttiiccaall TTuubbee Installing the Finderscope To install the finderscope onto the telescope you must first mount the finderscop

11Installing the Eyepieces The eyepiece, or ocular as it is also called, is an optical element that magnifies the image focused by the telescope

12Balancing the Telescope in DEC The telescope should also be balanced on the declination axis to prevent any sudden motions when the DEC clamp (

13Adjusting the Mount in Altitude • To increase the latitude of the polar axis, tighten the rear latitude adjustment screw and loosen the front

14Locate the Declination cable and plug one end of the cable into the port on the electronics panel labeled DEC Port and plug the other end of the

15 The Advanced Series GT, computerized version of each telescope has a hand controller designed to give you instant access to all the functions

164. Catalog Keys: The Advanced Series has keys on the hand control to allow direct access to each of the catalogs in its database. The hand co

17AAlliiggnnmmeenntt PPrroocceedduurreess In order for the telescope to accurately point to objects in the sky, it must first be aligned to th

184. Select one of the four alignment methods as described below. Note: If incorrect information is entered into the hand control, the UNDO but

19the eyepiece, pressing ENTER when complete. NOTE: Although the telescope allows the user to select the alignment stars, for best all-sky pointi

2 INTRODUCTION... ...

20OObbjjeecctt CCaattaalloogg Selecting an Object Now that the telescope is properly aligned, you can choose an object from any of the catalog

21Tour Mode The Advanced Series telescopes include a tour feature which automatically allows the user to choose from a list of interesting object

22 1 = .5x 6 = 64x 2 = 1x (sidereal) 7 = .5º / sec 3 = 4x 8 = 2º / sec 4 = 8x 9 = 3º / sec 5 = 16x SSeettuupp PPrro

23that is not included in the regular database. There are several ways to save an object to memory depending on what type of object it is: GoTo

24 Note: Some of the databases contain thousands of objects, and can therefore take several minutes to return the closest objects. Precise GoTo

25example, if you are observing from a mountainous location where the horizon is partially obscured, you can set your minimum altitude limit to re

26in R.A. (azimuth) until it reaches the point that the cables are extended to their maximum. Then by displaying the telescopes azimuth in this po

27should be. Use the equatorial head latitude and azimuth adjustments to place Polaris in the center of the eyepiece. Do not use the direction b

28EQ NORTHEQ SOUTHOFFMODESIDEREALSOLARLUNARRATETRACKINGVIEW TIME-SITESETUP TIME-SITEANTI-BACKLASHFILTER LIMITSDIRECTION BUTTONSGOTO APPROACHAUTOGU

29Actual image orientation as seen with the unaided eye Inverted image, as viewed with the eyepiece directly in telescope Reversed from left to ri

3 Light Control... 2

30 FFooccuussiinngg To focus your telescope, simply turn the focus knob located directly below the focuser. Turning the knob clockwise allows

31magnification, most observing is done in the range of 20 to 35 power for every inch of aperture which for the 80ED is 64 to 112. Determining Fie

32 Up to this point, this manual covered the assembly and basic operation of your telescope. However, to understand your telescope more thorough

33Motion of the Stars The daily motion of the Sun across the sky is familiar to even the most casual observer. This daily trek is not the Sun movi

34Latitude Scales The easiest way to polar align a telescope is with a latitude scale. Unlike other methods that require you to find the celestial

35Remember, while Polar aligning, do NOT move the telescope in R.A. or DEC. You do not want to move the telescope itself, but the polar axis. The

36DDeecclliinnaattiioonn DDrriifftt MMeetthhoodd ooff PPoollaarr AAlliiggnnmmeenntt This method of polar alignment allows you to get the

37 With your telescope set up, you are ready to use it for observing. This section covers visual observing hints for both solar system and deep sk

38 For safe solar viewing, use a solar filter that reduces the intensity of the Sun's light, making it safe to view. With a filter you can see

39disturbances vary from time-to-time and place-to-place. The size of the air parcels compared to your aperture determines the "seeing" q

4 Congratulations on your purchase of the Celestron Advanced Series telescope (AST)! The Advanced Series of telescopes come in standard (non-com

40 After looking at the night sky for a while you may want to try photographing it. Several forms of photography are possible with your telescope

41 5. Locate the area of the sky that you want to photograph and move the telescope so that it points in that direction. 6. Find a suitable guide

426. Advance the film and repeat the process. Lunar Phase ISO 50 ISO 100 ISO 200 ISO 400 Crescent 1/2 1/4 1/8 1/15 Quarter 1/15 1/30 1/60 1/12

43Auto Guiding The Advanced GT telescope has a designated auto guiding port for use with a CCD autoguider. The diagram below may be useful when co

44 While your telescope requires little maintenance, there are a few things to remember that will ensure your telescope performs at its best. CCa

45 You will find that additional accessories enhance your viewing pleasure and expand the usefulness of your telescope. For ease of reference, all

46Flashlight, Night Vision - (#93588) - Celestron’s premium model for astronomy, using two red LED's to preserve night vision better than red f

47Appendix A – Technical Specifications Advanced Series 21021 / 21022 21026 / 21027 Specifications: Optical Design 80mm (3.2") refrac

48Appendix B - Glossary of Terms A- Absolute magnitude The apparent magnitude that a star would have if it were observed from a standard dist

49J - Jovian Planets Any of the four gas giant planets that are at a greater distance form the sun than the terrestrial planets. K - Kuiper Belt

5 Fig 1-2 - The Advanced GT Series C80-GT Shown 1. Objective Lens 10. Focuser 2. Declination Motor Drive 11. Diagonal 3.

50telescope at this rate. The rate is 15 arc seconds per second or 15 degrees per hour. T - Terminator The boundary line between the light and

51AAPPPPEENNDDIIXX CC LLOONNGGIITTUUDDEESS AANNDD LLAATTIITTUUDDEESS LONGITUDE LATITUDE degrees min degrees min ALABAMA An

52 LONGITUDE LATITUDE degrees min degrees min Melbourne 80 37.8 28 6 Miami 80 16.8 25 49.2 Naples 81 4.8 26 7.8 Nasa Shuttle 80 4

53 LONGITUDE LATITUDE degrees min degrees min Wurtsmith 83 2.4 44 27 Ypsilanti 83 31.8 42 13.8 MINNESOTA Albert Lea 93 22.2

54 LONGITUDE LATITUDE degrees min degrees min OKLAHOMA Altus AFB 99 16.2 34 40.2 Ardmore 97 1.2 34 18 Bartlesville 96 0 36

55 LONGITUDE LATITUDE degrees min degrees min Walla Walla 118 16.8 46 6 Wenatchee 120 1.2 47 24 Whidbey Is 122 39 48 21 Yakima 1

56Appendix D - RS-232 Connection You can control your telescope with a computer via the RS-232 port on the computerized hand control and using

57Additional RS232 Commands SSeenndd AAnnyy TTrraacckk RRaattee TThhrroouugghh RRSS223322 TToo TThhee HHaanndd CCoonnttrrooll 1. Multipl

58 APPENDIX E – MAPS OF TIME ZONES

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6 This section covers the assembly instructions for your Celestron Advanced Series Telescope (AST). Your AST telescope should be set up indoo

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66CELESTRON TWO YEAR WARRANTY A. Celestron warrants this telescope to be free from defects in materials and workmanship for two years. Celestro

Celestron 2835 Columbia Street Torrance, CA 90503 U.S.A. Tel. (310) 328-9560 Fax. (310) 212-5835 Web site at http//w

7attaches to the tripod head. On one side of the tripod head there is a metal alignment peg for aligning the mount. This side of the tripod will

8 IInnssttaalllliinngg tthhee CCoouunntteerrwweeiigghhtt The Advanced Equatorial mount comes with either one or two counterweights (dependi

9 4. Slide the R.A. slow motion knob onto the R.A. shaft. The knob is a tension fit, so sliding it on holds it in place. As mentioned above, th