Circular No. 8504

Central Bureau for Astronomical Telegrams INTERNATIONAL ASTRONOMICAL UNION Mailstop 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A. IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions) BMARSDEN@CFA.HARVARD.EDU or DGREEN@CFA.HARVARD.EDU (science) URL http://cfa-www.harvard.edu/iau/cbat.html Phone 617-495-7244/7440/7444 (for emergency use only)

SUPERNOVAE 2005az, 2005bb, AND 2005bc

Further to IAUC 8493, J. Burket, H. Pugh, and W. Li report the
LOSS discovery of two apparent supernovae on unfiltered KAIT images.
Further to IAUC 8499, T. Puckett and L. Cox also report their
independent discovery of SN 2005bc.  Tabulated LOSS discovery data:

SN      2005 UT      R.A.  (2000.0)  Decl.    Mag.     Offset
2005bb  Apr. 1.40   12 57 11.87  - 1 42 17.4   19.8   4".1 W, 6".9 N
2005bc  Apr. 2.44   14 37 15.05  +38 27 23.1   16.6   4".6 E, 7".5 N

Additional magnitudes, from KAIT unless otherwise noted:  SN 2005bb
in UGC 8067, 2004 Dec. 25.41 UT, [20.5; 2005 Jan. 21.44, [19.0; Feb.
3.41, [17.5; Mar. 6.40, 18.0; Apr. 2.41, 19.0.  SN 2005bc in NGC
5698, Mar. 11.43, [20.0; Apr. 4.39, 16.4 (Puckett and Cox).  A
Sloan Digital Sky Survey image of UGC 8067 from 2000 Feb. 12.46
showed nothing at the position of SN 2005bc (limiting mag 22.2).
Puckett reports position end figures 15s.05, 23".7 for SN 2005bc.

Host galaxy info: vel = 3679 km/s, 1.9 x 0.9, 13.84, SBb HII

SN type info: Ia

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