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UGC 8205 in Ursa Major Dist. 380 million l.y. (?) Arrow points at Supernova. Date : 20.4014 Apr 2005 Exposure time : 25 sec. 0.81m f/7 AP8 CCD |
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Date : 21.2711 Apr 2005 Exposure time : 60 sec. 0.81m f/7 AP8 CCD |
Circular No. 8518
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
SUPERNOVA 2005bt IN UGC 8205
O. Trondal, P. Holvorcem, and M.Schwartz report their discovery of
an apparent supernova (mag about 18.0) on unfiltered Tenagra II
0.81-m telescope images taken on Apr. 20.40 and 21.27 UT. SN 2005bt
is located at R.A. = 13h07m13s.07,Decl. = +58o08'08".4 (equinox 2000.0),
which is 4".4 west and 2".2 north of the nucleus of UGC 8205.
Nothing was visible at this position in earlier images taken by T. Boles
on 2003 May 25.96 (0.35-m reflector; limiting mag about 19.0) and W. Li
on 2002 June 19.22 (KAIT; limiting mag about 19.0). T. Puckett provides the
following unfiltered CCD magnitudes for SN 2005bt: 2002 Apr. 18,
[20; 2003 Apr. 12, [20; 2005 Mar. 19, 18.4; Apr. 17, 18.0; 21, 18.0.
(C) Copyright 2005 CBAT
2005 April 21 (8518) Daniel W. E. Green
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SN2006cr discovered by Tom Boles Mag 18.1 Type II Date : 29.954 May 2006 Exposure time : 5x60 sec. 0.35m f/11 AP7 CCD |