Electronic Telegram No. 840
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)
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SUPERNOVA 2007Q IN NGC 5888
     S. Blondin, M. Modjaz, R. Kirshner, and P. Challis, Harvard-Smithsonian
Center for Astrophysics, report that a spectrogram (range 350-740 nm) of
2007Q (cf. CBET 821), obtained by P. Berlind on Feb. 9.57 UT with the F. L.
Whipple Observatory 1.5-m telescope (+ FAST), shows it to be a type-II
supernova, roughly 3-4 weeks past explosion.  The spectrum is most similar
to the type-II supernova 1987A at 24 days past explosion.  Adopting a
recession velocity of 8729 km/s for the host galaxy (from "The Updated
Zwicky Catalog", http://tdc-www.harvard.edu/uzc/), the maximum absorption in
the H_alpha line (rest 656.3 nm) is blueshifted by roughly 8000 km/s.


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      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2007 CBAT
2007 February 9                  (CBET 840)               Daniel W. E. Green