Celestron 11065, 91525, 11055 instruction manual Star Hopping

Page 50

Star Hopping

Another way to find deep-sky objects is by star hopping. Star hopping is done by using bright stars to “guide” you to an object. Here are the directions for two popular objects.

The Andromeda Galaxy, M31, is an easy target. To find M31:

1.Locate the constellation of Pegasus, a large square visible in the fall and winter months.

2.Start at the star in the northeast corner. The star is Alpha (α ) Andromedae.

3.Move northeast approximately 7°. There you will find two stars of equal brightness — Delta (δ ) and Pi (π ) Andromedae — about 3° apart.

4.Continue in the same direction another 8°. There you will find two stars — Beta (β ) and Mu (∝) Andromedae — about 3° apart.

5.Move 3° northwest — the same distance between the two stars — to the Andromeda galaxy. It is easily visible in the finder.

Figure 6-3

Star hopping to the Andromeda Galaxy is a snap to find since all the stars needed to do so are visible to the naked eye. Note that the scale for this star chart is different from the one on the following page which shows the constellation Lyra.

46 • Celestial Observing

Image 50

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 Full Lunar Phase ISO Crescent QuarterShort Exposure Prime Focus 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-numbersLunar or small planetary nebulae Imaging at f/7 Imaging at f/11Medium size to small galaxies 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