Michael Purcell's Astrophotography

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M104, The Sombrero Galaxy

(Click on the picture above to go to the main image.)

M104 is one of the brightest and largest galaxies in the Virgo cluster. Its estimated mass is over one trillion suns, about five times the mass of our Milky Way.

I took this picture at Grove Creek Observatory.

Constellation	Virgo
Right Asc (hh:mm:ss)	12:40:00
Declination(deg:sec)	-11:37
Magnitude	8.3
Size (ArcMin)	9x4
Tirion SkyAtlas 2000	#14
Uranometria 2000	#284

CCD Camera Parameters

ST-7 Compressed Image
File_version = 3
Data_version = 1
Exposure = 15 minutes
Focal_length = 97.959
Aperture = 141.3700
Response_factor = 2000.000
Note = Image taken 04/28/98 at 21:01:12
Background = 472
Range = 1848
Height = 488
Width = 728
Date = 04/28/98
Time = 21:01:12
Exposure_state = 356
Temperature = -14.81 C
Number_exposures = 30
Each_exposure = 30 seconds
History = R
Observer = Michael Purcell; C-14@f/7
X_pixel_size = 0.0090
Y_pixel_size = 0.0090
Pedestal = 2743
E_gain = 2.30
User_1 = CCDOPS for DOS Version 3.76
Filter = None
Readout_mode = 0
Track_time = 0
Sat_level = 65535

This page last updated on May 10, 1998 Contact Michael Purcell