Celestron 11055, 91525, 11065 instruction manual DEC Reverse, Autoguiding

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R.A./DEC Reverse

As mentioned previously, the direction a particular button moves the mount varies depending on the telescope’s orientation (i.e., whether it’s on the east or west side of the mount). This can create confusion when guiding if you change the telescope’s orientation during a given photographic session. To compen- sate for this, the direction of the R.A. and DEC buttons are changeable. To reverse the direction of either the R.A. and/or DEC buttons, change the switch setting of the appropriate axis (see Figure 5-7).

Reverse switches

Guiding Buttons

Figure 5-7

Autoguiding

On the top side of the hand controller you will find a phone jack outlet desig- nated for use with an autoguider. Most CCD autoguiders will require a cable that attaches the autoguider to your telescope's drive controller via the hand controller outlet, rendering the hand controller inoperable. By plugging the autoguider cable directly into the hand controller, you have the ability to override the autoguider and make manual corrections with the hand controller buttons.

42 • Using the Drive

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Contents Page E C e l e s t r o n C M- 11 00/1400 B L E O F C O N T E N T S Iv Table of Contents T R O D U C T I O N How to Use This Manual Word of Caution Schmidt-Cassegrain Optical System S E M B L I N G Y O U R C M 1 1 0 Unpacking Your Celestron CM-1100CM-1100 Setting Up the Tripod Attaching the Center Leg Brace Attaching the Central Column Central Column Electronics Console Center Leg BraceAttaching the Equatorial Mount Installing Counterweight Bar Installing CounterweightAttaching the Optical Tube to the Mount Attaching the Visual Back Installing the Star Diagonal Assembling Your CM-1100 Installing the Finder Installing the Polar Finder Moving the Telescope in R.A. and DEC Adjusting the Mount Balancing the Mount in R.A Balancing the Mount in DEC Assembling Your CM-1100 Technical Specifications Tripod L E S C O P E B a S I C S Image OrientationFocusing General Photography Hints Aligning the Finder Your First Look Daytime ObservingNighttime Observing Calculating Magnification Determining Field of View T R O N O M Y B a S I C S Celestial Coordinate SystemMotion of the Stars Polar Alignment DefinitionFinding the Pole Latitude Scales Pointing at Polaris Polar Axis Finder Declination Drift Aligning the R.A. Setting Circle Setting the DEC Circle Powering Up the Drive I N G T H E D R I V EGuide Speed Periodic Error Correc- tion BC Backlash CorrectionHC/CCD Northern/Southern Hemisphere Operation Hand ControllerDEC Reverse AutoguidingL E S T I a L O B S E R V I N G Observing the MoonObserving the Sun Using Your Setting Circles Observing Deep-Sky ObjectsStar Hopping Celestial Observing Sky Illumination Viewing ConditionsTransparency Seeing ConditionsCelestial Observing L E S T I a L P H O T O G R a P H Y Short Exposure Prime Focus Lunar Phase ISO Crescent QuarterFull Celestial Photography Piggyback Celestial Photography Eyepiece Projection Planet ISO Moon Mercury Venus Mars Jupiter Saturn Long Exposure Prime Focus Celestial Photography CCD Imaging Fastar Configuration Description of F-numbersMedium size to small galaxies Imaging at f/7 Imaging at f/11Lunar or small planetary nebulae Imaging at f/22 Planetary or LunarCare and Cleaning of the Optics Collimation L E S C O P E M a I N T E N a N C ETelescope Maintenance Telescope Maintenance T I O N a L a C C E S S O R I E S Optional Accessories Optional Accessories Optional Accessories Const Mag Type Proper NameNGC# Spiral Galaxy Epoch Star Name Constellation MagnitudeGeneral Observational Astronomy Astronomy TextsAtlases Visual ObservationCelestron ONE Year Warranty