Circular No. 7154

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)

SUPERNOVA 1999bx IN UGC 11391

A. Friedman and W. Li, University of California at Berkeley, on behalf of the Lick Observatory Supernova Search (cf. IAUC 6627, 7126), reports the discovery with the 0.8-m Katzman Automatic Imaging Telescope (KAIT) of an apparent supernova in UGC 11391. SN 1999bx was discovered on an unfiltered image taken on Apr. 26.5 UT (mag about 16.5) and confirmed on Apr. 27.5 under poor seeing conditions. The new star is located at R.A. = 19h01m41s.44, Decl. = +40o44'52".3 (equinox 2000.0). The host galaxy, UGC 11391, has a peculiar appearance (two nuclei) and may be an interacting galaxy pair. The supernova is sitting in the middle of the western ridge that connects the two nuclei, and is about 2".2 west and 14".9 north of the southern nucleus. KAIT images of the same field on 1998 Sept. 22.1 (limiting mag about 19.5) showed nothing at the position of SN 1999bx.

-----------------------------

Host galaxy info: V = 4545 km/s

SN type info: SN II

-----------------------------

Return to KAIT home page