Michael Purcell's Astrophotography

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M100

I took this picture at Grove Creek Observatory using their ST-6B. The small galaxy at the upper left is the 14th magnitude galaxy NGC4322.


Constellation Coma Berenices
Right Asc (hh:mm:ss) 12:22:54
Declination(deg:sec) 15:49
Magnitude 9.4
Size (ArcMin) 7x6
Tirion SkyAtlas 2000 #14
Uranometria 2000 #193

CCD Camera Parameters

ST-6B 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 05/01/98 at 00:26:07
Background = 400
Range = 1144
Height = 232
Width = 330
Date = 05/01/98
Time = 00:26:07
Exposure_state = 100
Temperature = -30.01
Number_exposures = 30
Each_exposure = 30 seconds
History = REKF
Observer =Michael Purcell; C-14@f/7
X_pixel_size = 0.0230
Y_pixel_size = 0.0270
Pedestal = 4389
E_gain = 6.70
User_1 = CCDOPS for DOS Version 3.76
Filter = CLEAR
Readout_mode = 1
Track_time = 0
Sat_level = 65535

This page last updated on May 5, 1998 Contact Michael Purcell

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