Celestron 11055, 91525, 11065 instruction manual Spiral Galaxy

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M#	NGC#	Const.	R.A.		DEC	Mag	Type	Proper Name
			H M S		° ‘
M81	NGC 3031	UMa	9	55.8	69 04	6.8	Sp. Gx.	Bodes Nebula
M82	NGC 3034	UMa	9	56.2	69 41	8.4	Ir. Gx.
M83	NGC 5236	Hya	13	37.7	-29 52	7.6	Sp. Gx.
M84	NGC 4374	Vir	12	25.1	12 53	9.3	El. Gx.
M85	NGC 4382	Com	12	25.4	18 11	9.2	El. Gx.
M86	NGC 4406	Vir	12	26.2	12 57	9.2	El. Gx.
M87	NGC 4486	Vir	12	30.8	12 24	8.6	El. Gx.	Virgo A
M88	NGC 4501	Com	12	32.0	14 25	9.5	Sp. Gx.
M89	NGC 4552	Vir	12	35.7	12 33	9.8	El. Gx.
M90	NGC 4569	Vir	12	36.8	13 10	9.5	Sp. Gx.
M91	NGC 4548	Com	12	35.4	14 30	10.2	Sp. Gx.
M92	NGC 6341	Her	17	17.1	43 08	6.5	Gl. Cl.
M93	NGC 2447	Pup	7	44.6	-23 52	6.2	Op. Cl.
M94	NGC 4736	CVn	12	50.9	41 07	8.1	Sp. Gx.
M95	NGC 3351	Leo	10	44.0	11 42	9.7	Sp. Gx.
M96	NGC 3368	Leo	10	46.8	11 49	9.2	Sp. Gx.
M97	NGC 3587	UMa	11	14.9	55 01	11.2	P. Neb.	Owl Nebula
M98	NGC 4192	Com	12	13.8	14 54	10.1	Sp. Gx.
M99	NGC 4254	Com	12	18.8	14 25	9.8	Sp. Gx.	Pin Wheel Nebula
M100	NGC 4321	Com	12	22.9	15 49	9.4	Sp. Gx.
M101	NGC 5457	UMa	14	03.2	54 21	7.7	Sp. Gx.
M102	NGC 5457	UMa	14	03.2	54 21	7.7	dup
M103	NGC 581	Cas	1	33.1	60 42	7.4	Op. Cl.
M104	NGC 4594	Vir	12	40.0	-11 37	8.3	Sp. Gx.	Sombrero Galaxy
M105	NGC 3379	Leo	10	47.9	12 35	9.3	El. Gx..
M106	NGC 4258	CVn	12	19.0	47 18	8.3	Sp. Gx.
M107	NGC 6171	Oph	16	32.5	-13 03	8.1	Gl. Cl.
M108	NGC 3556	UMa	11	11.6	55 40	10.0	Sp. Gx.
M109	NGC 3992	UMa	11	57.7	53 23	9.8	Sp. Gx.
M110	NGC 205	And	0	40.3	41 41	8.0	El. Gx.
Object Abbreviations:
• Sp. Gx		Spiral Galaxy
• El. Gx		Elliptical Galaxy
• Ir. Gx		Irregular Galaxy
• Op. Cl		Open Cluster
• Gl. Cl		Globular Cluster
• D. Neb		Diffuse Nebula
• P. Neb		Planetary Nebula
NOTE:	All coordinates for the objects in the Messier catalog are listed in epoch 2000.00.

72 • The Messier Catalog

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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 Viewing Conditions TransparencySky Illumination 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 MagnitudeAstronomy Texts AtlasesGeneral Observational Astronomy Visual ObservationCelestron ONE Year Warranty