Celestron CGE925 Bedienerhandbuch

CCGGEEPPrrooSSeerriieessINSTRUCTION MANUALCCGGEEPPrroo992255●●CCGGEEPPrroo11110000●●CCGGEEPPrroo11440000

10AAttttaacchhiinnggtthheeOOppttiiccaallTTuubbeettootthheeMMoouunnttThe telescope attaches to the mount via a dovetail slide bar which is mounted alon

11IInnssttaalllliinnggtthheeSSttaarrDDiiaaggoonnaallThe star diagonal is a prism that diverts the light at a right angle to the light path of the tele

12To install the finderscope:1. Attach the bracket to the optical tube. To do this, place the curved portion of the bracket with the slot over the tw

132. Slide the eyepiece end of the finderscope into the front ring of the bracket (the front ring is the one without the adjustment screws), then thro

14BBaallaanncciinnggtthheeMMoouunnttiinnRR..AA..To eliminate undue stress on the mount, the telescope should be properly balanced around the polar axi

156. Slightly loosen the knobs that holds the telescope to the mounting platform and slide the telescope either forward or backward until it remains s

16AAttttaacchhiinnggtthheeHHaannddCCoonnttrroollHHoollddeerrThe telescope comes with a hand control holder to place the computerized hand control. The

17All Celestron computerized telescope come with a hand control designed to give you instant access to all the functions that your telescope has to of

184. 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

19the telescope will automatically slew to. One Star Align uses the same time/location information but only uses one star for alignment.Solar System

2INTRODUCTION ...

20Select one of the alignment methods as described below. Note: If incorrect information is entered into the hand control, the UNDO button acts like a

21SSoollaarrSSyysstteemmAAlliiggnnSolar System Align is designed to provide excellent tracking and GoTo performance by using solar system ob

22NOTE: Just like with Quick-Align, you can use the Re-alignment feature (see below) to improve your telescopes pointing accuracy after using the Las

23Slewing to an ObjectOnce the desired object is displayed on the hand control screen, choose from the following options: Press the INFO Key. T

24Rate Button Pressing the RATE key (11) allows you to instantly change the speed rate of the motors from high speed slew rate to precise guiding rate

25SiderealThis rate compensates for the rotation of the Earth by moving the telescope at the same rate as the rotation of the Earth, but in the opposi

26Goto R.A/ Dec - Allows you to input a specific R.A. and declination and slew to it. To store a set of coordinates (R.A./Dec) permanently into the

27by inputting a value which quickly rewinds the motors just enough to eliminate the play between gears. The amount of compensation needed depends o

28Autoguide Rate – Allows the user to set an autoguide rate as a percentage of sidereal rate. This is helpful when calibrating your telescope to a CC

29adjust the slew limit on the side of the mount that is restricted by the cables, and command the mount the stop slewing before it reaches this point

3Goto Axis Position ...

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

31Scrolling 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

32MENUTRACKINGMODERATEEQ NORTHEQ SOUTHSIDEREALSOLARLUNARUTILITIESCALIBRATE MOUNTSCOPE SETUPVIEW TIME-SITESETUP TIME-SITEHOME POSITIONANTI-BACKLASHFILT

33Figure 4-1AAccuuttaawwaayyvviieewwoofftthheelliigghhttppaatthhoofftthheeSScchhmmiiddtt--CCaasssseeggrraaiinnooppttiiccaallddeessiiggnnActual image o

34Figure 4-3 -The emblem on the end of the focus knob shows the correct rotational direction for focusing your telescope.FocusingThe Schmidt-Cassegrai

35thousand yards. The apparent field of each eyepiece that Celestron manufactures is found in the Celestron Accessory Catalog (#93685).General Observi

36Up to this point, this manual covered the assembly and basic operation of your telescope. However, to understand your telescope more thoroughly, yo

37Motion 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

38Finding the North Celestial PoleIn each hemisphere, there is a point in the sky around which all the other stars appear to rotate. These points are

39If you are observing from Los Angeles, which has a latitude of 34°, then the celestial pole is 34° above the northern horizon. All a latitude scale

4Congratulations on your purchase of the Celestron CGE Pro Series telescope! The CGE Pro Series is made of the highest quality materials to ensure sta

40To re-align your telescope:2. Slew the telescope to one of the original alignment stars, or another bright star if the original alignment stars are

41With 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

42Solar 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 without

43Figure 6-1 Seeing conditions directly affect image quality. These drawings represent a point source (i.e., star) under bad seeing conditions (left

44After 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

451. 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

46Because of the high magnifications during eyepiece projection, the field of view is quite small which makes it difficult to find and center objects.

47Once you have mastered the technique, experiment with different films, different focal length eyepieces, and even different filters.Long Exposure Pr

48Periodic Error Correction (PEC)PEC for short, is a system that improves the tracking accuracy of the drive by reducing the number of user correcti

49Does the PEC function make unguided astrophotography possible? Yes and no. For solar (filtered), lunar, and piggyback (up to 200mm), the answer is

5AS1 Optical Tube 8 Tripod 2 Telescope Mounting Platform 9 Tripod Center Leg Brace/Accessory Tray3 Latitude Adjustment Knob 10 Counterweight(s)4 Equa

50Telescope ModelStandard Cassegrain f/10With Reducer/Corrector f/6.3Focal Length & SpeedC880" (2032mm) 50.4" (1280mm)C9.2593" (235

51FFiigguurree88--11The three collimation screws are located on the front of the secondary mirror housing.While your telescope requires little mainten

52Figure 8-3A collimated telescope should appear symmetrical with the central obstruction centered in the star'sdiffraction pattern.Before you

537. 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

54You will find that additional accessories enhance your viewing pleasure and expand the usefulness of your telescope. For ease of reference

55Series 1 – #94119-10Orange, Light Blue, ND13%T, Polarizing (#s 21, 80A, #15, Polarizing)Series 2 – #94119-20Deep Yellow, Red, Light Green, ND25% T (

56film. It also increases the field of view significantly and is ideal for wide-field, deep-space viewing. It is also perfect for beginning prime fo

57Appendix A – Technical SpecificationsCGE Pro Series 11086 11087 11088 11089CGE Pro 925 CGE Pro 1100 CGE Pro 1400 CGE Pro 1400 FastarSpecifications:O

58Appendix B - Glossary of TermsA-Absolute magnitude The apparent magnitude that a star would have if it were observed from a standard distance of 10

59J-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

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

60telescope 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

61Appendix 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

62Additional RS232 CommandsSSeennddAAnnyyTTrraacckkRRaatteeTThhrroouugghhRRSS223322TTooTThheeHHaannddCCoonnttrrooll1. Multiply the desired tracking ra

63APPENDIX D – MAPS OF TIME ZONES

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73. Slide the center portion of the tripod leg away from the tripod head until it is at the desired height.4. Tighten the levers on each leg clamp to

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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 2009 Cele

8OOnneePPeerrssoonnIInnssttaallllaattiioonnAs an alternative to the method described above, The CGE Pro mount can be more easily assembled by one pers

9AAttttaacchhiinnggtthheeMMoottoorrCCaabblleess1. Locate the two motor cables. The longer cable attaches to the DEC motor while the shorted cable atta