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NGC 3938 in Ursa Major
Distance : 50 million l.y. ?
SN2005ay Mag 14.9CR
Exposure time : 12 x 80 sec.
0.61m f/6.3 MX916 CCD
Date : 30.Mars 2005
Time : 22.28 UT.
Previous SNe 1961U, 1964L
Photometry reference image.