Celestron 31056, 31058 instruction manual Elliptical 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.

58 • The Messier Catalog

Image 58

Contents C150-HD and G-8N Newtonian Page B L E N T E N T S Celestial Photography T R O D U C T I O N How to Use this Manual Word of Caution Newtonian Optical System S E M B L I N G Y O U R N E W T O N I a N T E L E S C O P E Unpacking Your G-8NG-8N C150-HD Setting Up the Tripod Adjusting the Tripod HeightAttaching the Accessory Tray Attaching the Equatorial Mount They are needed later for polar alignmentAttaching the R.A. Slow Motion Knob Attaching the Declination Slow Motion Knob Attaching the Counterweight Bar and Counterweight Attaching the Telescope to the Mount For G-8N Attaching the Telescope to the Mount For C150- HD Removing the Lens Cap Balancing the Telescope in R.ABalancing the Telescope in DEC CompletelyG-8N C150-HD Installing the Finderscope Installing the Eye- piece Technical Specifications Image Orientation ActualVeiw NewtonianViewFocusing 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 Coordi- nate SystemMotion of the Stars Polar Alignment DefinitionFinding the Pole Latitude Scales Pointing at Polaris Declination Drift Aligning the R.A Setting Circle Polar Alignment FindersL E S T I a L O B S E R V I N G Observing the Moon PlanetsObserving the S u n Observing Deep-Sky ObjectsUsing the Setting Circles Star Hopping Celestial Observing Sky Illumination Viewing ConditionsTransparency SeeingCelestial Observing L E S T I a L P H O T O G R a P H Y Lunar Phase ISO Crescent Quarter 125 Full 250 Short Exposure Prime F o c u sPiggyback Celestial Photography Care and Cleaning of the Optics Collimation L E S C O P E M a I N T E N a N C EOr back out the holder screws more than one 1 to two 2 turns T I O N a L a C C E S S O R I E S Optional Accessories Single Axis Motor Drive System #93518 Themessiercatalog Great Orion Nebula Elliptical Galaxy List of Bright Stars For Further Reading Celestron ONE Year Warranty