Electronic Telegram No. 276
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


SUPERNOVA 2005ip IN NGC 2906
     M. Modjaz, R. Kirshner, and P. Challis, Harvard-Smithsonian Center
for Astrophysics, report that a spectrogram (range 350-740 nm) of SN
2005ip (cf. CBET 275), obtained by M. Calkins on Nov. 6.50 UT with the
F. L. Whipple Observatory 1.5-m telescope (+ FAST), shows it to be a
type-II supernova, probably within a few weeks past explosion.  The
spectrum consists of a blue continuum (indicating a young age), P-Cyg
lines of H_alpha and H_beta, and other absorption troughs.  Adopting a
recession velocity of 2440 km/s for the host galaxy (from Falco et al.
1999, PASP 111, 438), the expansion velocity derived from the minimum of
the H_alpha line is 15400 km/s.


NOTE: These 'Central Bureau Electronic Telegrams' are sometimes
      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2005 CBAT
2005 November 6                  (CBET 276)               Daniel W. E. Green