Circular No. 7294

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 1999em in NGC 1637

A SN II in NGC 1637, a galaxy that is only 8 Mps away. About one third the distance of the Virgo cluster. Brightness: 13.5 mag

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Host galaxy info: V = 717 km/s, 4.0'x3.2', SAB(rs)c

SN type info: SN II

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