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Messier M1

Object Information Messier object: M1 Common name for Messier object: Crab Nebula NGC (New General Catalog) number: NGC 1952 Discription: Supernova remnant and emission nebula Located in constellation: Taurus Right ascension in hours:minutes: 5:34.5 Declination in degrees:minutes: 22:01 Visual magnitude: 8.4, 8 Size: 6 x 4 arc minutes Image size: 55.23 arc minutes high by 40.98 arc minutes wide Image orientation: North is top, East is left Detailed discription of M1 in SEDS Messier database Other Messier galleries, images or catalogs

Observing Log
Date December 20, 1998
Time at end of first CCD image 22:53 PST
Time at end of last CCD image 23:06 PST
Observing Location: At home on the drive way
Observation of object: M1 is an elliptical shape cloud of gas with bright patches.
 
Sky Conditions
Sky transparency: 5.5 (Magnitude of the faintest star visible with the unaided eye in Ursa Minor)
Moon sets at 18:31 PST
Astronomical twilight ends in the evening at 18:16 PST
Astronomical twilight starts in morning at 6:00 PST December 21, 1998
 
Observing Equipment
80 mm aperture refractor telescope and CCD Cookbook Camera
CCD image time: 4 - 240 seconds images added together
CCD dark calibration frames: 4 - 240 seconds dark frames

© 1998-2003 David Haworth