Celestron C8-S Manuel d'utilisateur

AAddvvaanncceedd SSeerriieess AAddvvaanncceedd SSeerriieess GGGTTT INSTRUCTION MANUAL CC55--SS ●●

10 shafts, one on either side of the mount. It makes no difference which shaft you use since both work the same. Use whichever one you find more co

11 3. Hold the visual back with the set screw in a convenient position and rotate the knurled slip ring clockwise until tight. Once this is done, y

12 • Finderscope • Finder Bracket • Rubber O-ring • Three Nylon Tipped Thumbscrews (10-24x1/2") • Two Phillips Head Screws (8-32x1/2") To

13 Both the R.A. and DEC axis have lock levers to clutch down each axis of the telescope. To loosen the clutches on the telescope, rotate the lock le

14 3. Loosen the DEC clutch lock lever and rotate the telescope until the tube is parallel to the ground. 4. Release the tube — GRADUALLY — to se

15 azimuth housing. While standing behind the telescope, the knobs are on the front of the mount. • Turning the right adjustment knob clockwise mov

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

17 4. 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 con

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

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

INTRODUCTION ...

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

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

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

23 1 = .5x 6 = 64x 2 = 1x (sidereal) 7 = .5º / sec 3 = 4x 8 = 2º / sec 4 = 8x 9 = 3º / sec 5 = 16x SSeettuupp PPrroocc

24 GoTo Object: To go to any of the user defined objects stored in the database, scroll down to either GoTo Sky Obj or Goto Land Obj and enter t

25 Precise GoTo The Advanced Series telescopes have a precise goto function that can assist in finding extremely faint objects and centering object

26 minimum altitude limit to read +20º. This will make sure that the hand control only displays objects that are higher in altitude than 20º. If

27 telescopes azimuth in this position (by looking at Get Alt-Az under the Utilities menu) you can determine the telescopes azimuth at its most exten

28 Light Control – This feature allows you to turn off both the red key pad light and LCD display for daytime use to conserve power and to help pres

29 EQ NORTHEQ SOUTHOFFMODESIDEREALSOLARLUNARRATETRACKINGVIEW TIME-SITESETUP TIME-SITEANTI-BACKLASHFILTER LIMITSDIRECTION BUTTONSGOTO APPROACHAUTOGUI

3 Autoguide Rates ...

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

31 Motion 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 mov

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

33 4. Center Polaris in the field of the telescope using the fine adjustment controls on the mount. Remember, while Polar aligning, do NOT move t

34 Declination Drift Method of Polar Alignment This method of polar alignment allows you to get the most accurate alignment on the celestial pole

35 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

36 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 se

37 determines the "seeing" quality. Under good seeing conditions, fine detail is visible on the brighter planets like Jupiter and Mars, a

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

39• T-Max 400 • Any 100 to 400 ISO color slide film • Fuji Super HG 400 • Ektar 25 or 100 2. Center the Moon in the field of your telescope.

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

40act as a shutter. The card prevents light from entering the telescope while the shutter is released. Once the shutter has been released and the

41 There are several techniques for this type of photography, and the one chosen will determine the standard accessories needed. The best method fo

42There is no exposure determination table to help you get started. The best way to determine exposure length is look at previously published photo

43 Telescope Model Standard Cassegrain f/10 With Reducer/Corrector f/6.3 C5-S 49" (1250mm) 31" (788mm) C8-S 80" (2032mm) 50.4"

44 FFiigguurree 88--11 The three collimation screws are located on the front of the secondary mirror housing. While your telescope requires littl

45 Figure 8-3 A collimated telescope should appear symmetrical with the central obstruction centered in the star's diffraction pattern. To

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

47 Series 2 – #94119-20 Deep Yellow, Red, Light Green, ND25% T (#s 12, 25, 56, 96ND-25) Series 3 – #94119-30 Light Red, Blue, Green, ND50% T (#s 23A,

48 Radial Guider (#94176) - The Celestron Radial Guider® is specifically designed for use in prime focus, deep sky astrophotography and takes the pla

49 Appendix A – Technical Specifications Advanced Series 11071/11072 11025/11026 11045/11046 C5-S C8-S C9.25-S Specifications: Opt

5 ASSE 1 Optical Tube 7 Tripod 2 Finderscope 8 Counterweight(s) 3 Finderscope Bracket 9 Coun

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

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

52 telescope 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

53 AAPPPPEENNDDIIXX CC LLOONNGGIITTUUDDEESS AANNDD LLAATTIITTUUDDEESS LONGITUDE LATITUDE degrees min degrees min ALABAMA Annis

54 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 40.8

55 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 43 4

56 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 45 C

57 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 120

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

59 Additional RS232 Commands SSeenndd AAnnyy TTrraacckk RRaattee TThhrroouugghh RRSS223322 TToo TThhee HHaanndd CCoonnttrrooll 1. Multip

6 1 Optical Tube 9 Counterweight Bar 2 Finderscope 10 Declination Setting Circle 3 Finderscope

60 APPENDIX E – MAPS OF TIME ZONES

61

62

63

64

65

66

67

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

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

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

8 AAttttaacchhiinngg tthhee EEqquuaattoorriiaall MMoouunntt The equatorial mount allows you to tilt the telescope’s axis of rotation so that

9 IInnssttaalllliinngg tthhee CCoouunntteerrwweeiigghhtt Depending on which AST telescope you have, you will receive either one or two counterw