Celestron CGEM 1100 Bedienungsanleitung

CCGGEEMMSSeerriieessINSTRUCTION MANUALCCGGEEMM880000●●CCGGEEMM992255●●CCGGEEMM11110000

10AAttttaacchhiinnggtthheeVViissuuaallBBaacckkThe visual back is the accessory that allows you to attach all visual accessories to the telescope. The

11IInnssttaalllliinnggtthheeFFiinnddeerrssccooppeeThe CGEM 800 and 925 telescopes come with a 6x30 finderscope used to help you locate and center obje

123. Place the mounting bracket over the two holes of the rear cell as shown in the figure 2-10. 4. Insert the screws through the bracket and into th

132. Point your telescope at the object you selected and center it in the main optics of the telescope.3. Lock the azimuth and altitude clamps to hold

14BBaallaanncciinnggtthheeMMoouunnttiinnDDEECCAlthough the telescope does not track in declination, the telescope should also be balanced in this axis

15The latitude adjustment on the mount has a range from approximately 15° to 70°.It is best to always make final adjustments in latitude by moving t

16All Celestron computerized telescope come with a hand control designed to give you instant access to all the functions that your telescope has to of

174. Catalog Keys: The hand control has keys on the hand control to allow direct access to each of the catalogs in its database. The hand control c

18the telescope will automatically slew to. One Star Align uses the same time/location information but only uses one star for alignment.Solar System

19 Select the time zone that you are observing from. Again, use the Up and Down buttons (10) to scroll through the choices. Refer to Time Zone map i

2INTRODUCTION...

20OOnneeSSttaarrAAlliiggnnOne-Star Alignment works much the same way as Two-Star Align but uses only a single star in the sky for alignment. This met

21LLaassttAAlliiggnnmmeennttThe Last Alignment method will automatically recall the last stored index positions to continue using the alignment that w

22Pressing any of the other catalog keys (M, CALD, NGC, or STAR) will display a blinking cursor below the name of the catalog chosen. Use the numeric

23Direction ButtonsThe hand control has four direction buttons (3) in the center of the hand control which control the telescope'

24Tracking Rate In addition to being able to move the telescope with the hand control buttons, your telescope will continually track a celestial

25To replace the contents of any of the user defined objects, simply save a new object using one of the existing identification numbers; the telescope

26Anti-backlash – All mechanical gears have a certain amount of backlash or play between the gears. This play is evident by how long it takes f

27and clockwise (negative altitude) then make sure that the buttons used to center the alignment stars also move the telescope in the same directions.

28RA Limits - Sets the limits that the telescope can slew or track in Right Ascension (R.A.) before stopping. The slew limits are represented in degr

29 R.A. switch - this procedure records the offset error when the right ascension index mark is aligned at start-up. Calibrating the R.A. Index will

3Home Position...

30Scrolling MenuThis menus allows you to change the rate of speed that the text scrolls across the hand control display. Press the Up (number 6) butt

31MENUTRACKINGMODERATEEQ NORTHEQ SOUTHSIDEREALSOLARLUNARUTILITIESCALIBRATE MOUNTSCOPE SETUPVIEW TIME-SITESETUP TIME-SITEHOME POSITIONANTI-BACKLASHFILT

32Figure 4-1AAccuuttaawwaayyvviieewwoofftthheelliigghhttppaatthhoofftthheeSScchhmmiiddtt--CCaasssseeggrraaiinnooppttiiccaallddeessiiggnnActual image o

33Figure 4-3 -The emblem on the end of the focus knob shows the correct rotational direction for focusing your telescope.FocusingThe Schmidt-Cassegrai

34thousand yards. The apparent field of each eyepiece that Celestron manufactures is found in the Celestron Accessory Catalog (#93685).General Observi

35Up to this point, this manual covered the assembly and basic operation of your telescope. However, to understand your telescope more thoroughly, yo

36Motion of the StarsThe daily motion of the Sun across the sky is familiar to even the most casual observer. This daily trek is not the Sun moving a

37Latitude ScalePolar Aligning the MountLatitude ScalesThe easiest way to polar align a telescope is with a latitude scale. Unlike other methods that

382. Then accurately center the star in your eyepiece and press ALIGN.The telescope will then "sync" on this star and slew to the position t

39Polar Finderscope CoverPolar Axis CoverFigure 5-4photography. This must be done in the dark when Polaris is visible and can be done using the hole i

4Congratulations on your purchase of the Celestron CGEM Series telescope! The CGEM Series is made of the highest quality materials to ensure stability

40With your telescope set up, you are ready to use it for observing. This section covers visual observing hints for both solar system and deep sky ob

41Solar Observing Hints The best time to observe the Sun is in the early morning or late afternoon when the air is cooler. To center the Sun witho

42Figure 6-1 Seeing conditions directly affect image quality. These drawings represent a point source (i.e., star) under bad seeing conditions (left

43After looking at the night sky for a while you may want to try photographing it. Several forms of celestial photography are possible with your tel

441. Load your camera with film that has a moderate-to-fast speed (i.e., ISO rating). Faster films are more desirable when the Moon is a crescent. W

45Because of the high magnifications during eyepiece projection, the field of view is quite small which makes it difficult to find and center objects.

46Once you have mastered the technique, experiment with different films, different focal length eyepieces, and even different filters.Long Exposure Pr

47 3M 1000 (color slide) Scotchchrome 400 T-Max 3200 (black and white print) T-Max 400 (black and white print)Periodic Error Correction (PEC)PEC

487. Point the telescope at the object you want to photograph and center the guide star on the illuminated cross hairs and you are ready to play back

49Another way to reduce vibration is with the Vibration Suppression Pads (#93503). These pads rest between the ground and tripod feet. They reduce the

5AS1 Optical Tube 7 Tripod Center Leg Brace/Accessory Tray2 Telescope Mounting Platform 8 Counterweight(s)3 Equatorial Mount 9 Counterweight Bar4 Lat

50FFiigguurree88--11The three collimation screws are located on the front of the secondary mirror housing.While your telescope requires little mainten

51Figure 8-3A collimated telescope should appear symmetrical with the central obstruction centered in the star'sdiffraction pattern.Before you

527. Once the star image is in the center of the field of view, check to see if the rings are concentric. If the central obstruction is still skewed

53You will find that additional accessories enhance your viewing pleasure and expand the usefulness of your telescope. For ease of reference,

54Series 2 – #94119-20Deep Yellow, Red, Light Green, ND25% T (#s 12, 25, 56, 96ND-25)Series 3 – #94119-30Light Red, Blue, Green, ND50% T (#s 23A, 38A,

55Reducer/Corrector (#94175) - This lens reduces the focal length of the telescope by 37%, making your C8-S a 1280mm f/6.3 instrument. In add

56Appendix A – Technical SpecificationsCGEM Series 11097 11098 11099CGEM 800 CGEM 925 CGEM 1100Specifications:Optical Design203mm (8") Schmidt-Ca

57Appendix B - Glossary of TermsA-Absolute magnitude The apparent magnitude that a star would have if it were observed from a standard distance of 10

58J-Jovian PlanetsAny of the four gas giant planets that are at a greater distance form the sun than the terrestrialplanets.K-Kuiper Belt A region bey

59telescope at this rate. The rate is 15 arc seconds per second or 15 degrees per hour.T-TerminatorThe boundary line between the light and dark porti

6This section covers the assembly instructions for your Celestron Telescope. Your telescope should be set up indoor the first time so that it is easy

60Appendix C - RS-232 ConnectionYou can control your telescope with a computer via the RS-232 port on the computerized hand control and using an opti

61Additional RS232 CommandsSSeennddAAnnyyTTrraacckkRRaatteeTThhrroouugghhRRSS223322TTooTThheeHHaannddCCoonnttrrooll1. Multiply the desired tracking ra

62APPENDIX D – MAPS OF TIME ZONES

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7Before securing the mount to the tripod as shown in Fig. 2-3:1. Locate the Azimuth Adjustment Knobs from the box containing the CGEM mount.2. Thread

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

Celestron 2835 Columbia StreetTorrance, CA 90503 U.S.A.Tel. (310) 328-9560Fax. (310) 212-5835Web site at http//www.celestron.comCopyright 2008 Cele

8AAttttaacchhiinnggtthheeAAcccceessssoorryyTTrraayy1. Slide the accessory tray over the central rod so that each arm of the tray is pushing against th

9AAttttaacchhiinnggtthheeHHaannddCCoonnttrroollHHoollddeerrThe telescope comes with a hand control holder to place the computerized hand control. The