Celestron 11055, 91525, 11065 instruction manual Moving the Telescope in R.A. and DEC

Page 19

Moving the Telescope in R.A. and DEC

Once set up, you need to point your telescope at various portions of the sky to observe different objects. To make rough adjustments, loosen the R.A. and DEC clutch knobs slightly and move the telescope in the desired direction. Both the R.A. and DEC axis have two knobs to clutch down each axis of the telescope. To loosen the clutches on the telescope, rotate the clutch knobs (see figure below) counterclockwise. Once your have found your desired object in the finderscope, rotate the clutch knobs on each axis clockwise to lock the telescope in place.

DECClutchKnobs

DECSlowMotionControl

R.A. Slow Motion Control

R.A. Clutch Knobs

Figure 2-12

Using the Slow Motion

ControlsThe CI 700 mount is equipped with slow motion controls on both the R.A. and Declination axis. Each slow motion control has a clutch mechanism that

allows you to override the tracking motor and adjust the amount of tension when turning the knob. To adjust the clutch mechanism, hold the slow motion knob with one hand, and rotate the clutch wheel with your other hand. Rotate the clutch wheel clockwise (downward) to increase the tension on the slow motion control and counterclockwise (upward) to decrease the tension.

Slow Motion Knob

Clutch Wheel

Figure 2-13

Assembling Your CM-1100 • 15

Image 19
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 Unpacking Your Celestron CM-1100 S E M B L I N G Y O U R C M 1 1 0CM-1100 Setting Up the Tripod Central Column Electronics Console Center Leg Brace Attaching the Center Leg Brace Attaching the Central ColumnAttaching the Equatorial Mount Installing Counterweight Installing Counterweight BarAttaching 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 Image Orientation L E S C O P E B a S I C SFocusing General Photography Hints Aligning the Finder Daytime Observing Your First LookNighttime Observing Calculating Magnification Determining Field of View Celestial Coordinate System T R O N O M Y B a S I C SMotion of the Stars Definition Polar AlignmentFinding the Pole Latitude Scales Pointing at Polaris Polar Axis Finder Declination Drift Aligning the R.A. Setting Circle Setting the DEC Circle I N G T H E D R I V E Powering Up the DriveGuide Speed BC Backlash Correction Periodic Error Correc- tionHC/CCD Hand Controller Northern/Southern Hemisphere OperationAutoguiding DEC ReverseObserving the Moon L E S T I a L O B S E R V I N GObserving the Sun Observing Deep-Sky Objects Using Your Setting CirclesStar Hopping Celestial Observing Seeing Conditions Viewing ConditionsTransparency Sky IlluminationCelestial 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 Description of F-numbers Fastar ConfigurationMedium size to small galaxies Imaging at f/7 Imaging at f/11Lunar or small planetary nebulae Planetary or Lunar Imaging at f/22L E S C O P E M a I N T E N a N C E Care and Cleaning of the Optics CollimationTelescope 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 Mag Type Proper Name ConstNGC# Spiral Galaxy Magnitude Epoch Star Name ConstellationVisual Observation Astronomy TextsAtlases General Observational AstronomyCelestron ONE Year Warranty