CGEM Series Manual - Celestron

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Scrolling MenuThis menus allows you to change the rate of speed that the text scrolls across the hand control display. Press the Up (number 6) button to increase the speed of the text. Press the Down (number 9) button to decrease the speed of the text.Set Mount PositionThe Set Mount Position menu can be used to maintain your alignment in cases where you wish to disengaged the clutches orsimilar situation. For instance, you might use this feature if you needed to rebalance the mount after having completed analignment. To set the mount position simply slew to a bright star in the named star list then select Set Mount Position. Thehand control will sync on the star by asking you to center the star in the eyepiece and pressing the Align button. Once syncedon the star, you are free to manually move the mount in both axes in order to rebalance. When you are ready to slew thetelescope to your next object, just remember to manually return the tube to the same bright star and carefully center it in theeyepiece. Using this tool will invalidate the PEC index.Turn On/Off GPS - If using your telescopewith the optional CN-16 GPS accessory (seeOptional Accessories section of the manual),you will need to turn the GPS on the first timeyou use the accessory. If you want to use thetelescope's database to find the coordinates of acelestial object for a future or past dates youwould need to turn the GPS off in order tomanually enter a time other than the present.UTILITIESCALIBRATEMOUNTHOME POSTIONGOTORA SWITCHGOTOTurn On/Off RTC - Allows you to turn offthe telescopes internal real time clock. Whenaligning, the telescope still receives timeinformation from the RTC. If you want to usethe hand control database to find thecoordinates of a celestial object for a future orpast dates you would need to turn the RTC offin order to manually enter a time other than thepresent.LIGHTSCONTROLFACTORYSETTINGSVERSIONSETKEYPAD LEVELDISPLAY LEVELPeriodic Error Correction (PEC) - PEC isdesigned to improve photographic quality byreducing the amplitude of the worm gear errorsand improving the tracking accuracy of thedrive. This feature is for advancedastrophotography and is used when yourtelescope is accurately polar aligned. For moreinformation on using PEC, see the section on“Astrophotography”.GET AXISPOSITIONGOTO AXISPOSITIONHIBERNATESUN MENUSCROLLINGMENUSET MOUNTPOSITIONTURN ON/OFFGPSTURN ON/OFFRTCPEC30RECORDPLAYBACK
MENUALIGNLISTTRACKINGNAME STARMODEALIGNMENT STARSNGCEQ NORTHSAORATEEQ SOUTHSIDEREALCALIB. STARSPOLAR ALIGNSOLAR SYSTEMTOURSOLARVARIABLE STARSVIEW TIME-SITESCOPE SETUPLUNARSETUP TIME-SITEALIGN MOUNTDISPLAY ALIGNABELLASTERISMCALDWELLANTI-BACKLASHFILTER LIMITSDIRECTION BUTTONSSYNCCCD OBJECTSCONSTELLATIONSGOTO APPROACHUNDO SYNCDOUBLE STARSAUTOGUIDE RATESOTA ORIENTATIONMERIDIANICMESSIERMOUNT SETTINGSNAMED OBJECTUTILITIESR.A. LIMITSALIGNMENTCALIBRATE MOUNTHOME POSITIONSELECT LOCATIONLIGHTS CONTROLSET TO INDEXFACTORY SETTINGSVERSIONENTER TIMEGET AXIS POSITIONGOTO AXIS POSITIONDLS/STHIBERNATETIME ZONESUN MENUSCROLLING MENUENTER DATE – MM/DD/YYSET MOUNT POSITIONTURN ON/OFF GPSTWO STAR ALIGNUSER OBJECTSTURN ON/OFF RTCPECSOLAR SYSTEMALIGNLAST ALIGNMENTGOTO SKY OBJECTSAVE SKY OBJECTQUICK ALIGNSAVE DB OBJECTONE STAR ALIGNENTER RA & DECGOTO LAND OBJECTSAVE LAND OBJECTGET RA & DECGOTO RA & DECIDENTIFYPRECISE GOTO31
Page 2 and 3: INTRODUCTION.......................
Page 4 and 5: Congratulations on your purchase of
Page 6 and 7: This section covers the assembly in
Page 8 and 9: Attaching the Accessory Tray1. Slid
Page 10 and 11: Attaching the Visual BackThe visual
Page 12 and 13: 3. Place the mounting bracket over
Page 14 and 15: Figure 2-14Balancing the Mount in D
Page 16 and 17: All Celestron computerized telescop
Page 18 and 19: the telescope will automatically sl
Page 20 and 21: One Star AlignOne-Star Alignment wo
Page 22 and 23: Pressing any of the other catalog k
Page 24 and 25: Tracking RateIn addition to being a
Page 26 and 27: Anti-backlash - All mechanical gear
Page 28 and 29: RA Limits - Sets the limits that th
Page 32 and 33: A telescope is an instrument that c
Page 34 and 35: thousand yards. The apparent field
Page 36 and 37: Motion of the StarsThe daily motion
Page 38 and 39: 1. Center the star in the findersco
Page 40 and 41: With your telescope set up, you are
Page 42 and 43: Figure 6-1Seeing conditions directl
Page 44 and 45: 1. Load your camera with film that
Page 46 and 47: Once you have mastered the techniqu
Page 48 and 49: 7. Point the telescope at the objec
Page 50 and 51: While your telescope requires littl
Page 52 and 53: 7. Once the star image is in the ce
Page 54 and 55: Series 2 - #94119-20Deep Yellow, Re
Page 56 and 57: Appendix A - Technical Specificatio
Page 58 and 59: J -Jovian PlanetsK -Kuiper BeltL -L
Page 60 and 61: Appendix C - RS-232 ConnectionYou c
Page 62: APPENDIX D - MAPS OF TIME ZONES62
Page 71: Celestron2835 Columbia StreetTorran

CGEM Series Manual - Celestron

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