Electronic Telegram No. 1067

Central Bureau for Astronomical Telegrams INTERNATIONAL ASTRONOMICAL UNION M.S. 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A. IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions) CBAT@CFA.HARVARD.EDU (science) URL http://cfa-www.harvard.edu/iau/cbat.html

SUPERNOVAE 2007hb, 2007ir, AND 2007is

It would appear that the supernova in NGC 819 that was designated
2007ir on CBET 1066 is identical with SN 2007hb, announced on CBET
1043 as a fainter object without reference to NGC 819.  Therefore, the
designation 2007ir is being re-issued for the first apparent supernova
listed below.

Further to CBET 1062, P. Thrasher, D. Winslow, and W. Li report the
LOSS discovery of two apparent supernovae on unfiltered KAIT images:

SN        2007 UT       R.A.  (2000.0)  Decl.    Mag.       Offset
2007ir   Sept. 12.49   2 33 41.90  +37 40 08.2   17.4   10".2 W, 7".8 N
2007is   Sept. 14.14  16 47 14.59  +40 14 36.9   16.6    2".0 W, 5".7 S

Additional KAIT magnitudes for 2007ir in UGC 2033:  Aug. 22.50 UT, [19.3;
Sept. 15.45, 17.8.  Additional KAIT magnitudes for 2007is in UGC 10553:
Sept. 2.17, [19.2; 15.18, 16.3.

Host galaxy info: vel = 8897 km/s, 1.2 x 0.5, 14.5g, SBab: NLAGN

SN type info: Ia

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