[IAUC] CBET 1190: 20080102 : SUPERNOVA 2007st IN NGC 692

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                                                  Electronic Telegram No. 1190
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
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CBAT en CFA.HARVARD.EDU (science)
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SUPERNOVA 2007st IN NGC 692
     N. Morrell, on behalf of the Carnegie Supernova Project, reports that a
spectrum (range 380-940 nm) of 2007st (cf. CBET 1177), obtained on Dec. 28.20
UT with the Magellan I Baade telescope (+ IMACS spectrograph) at Las Campanas
Observatory, reveals this to be a type-Ia supernova.  Assuming for NGC 692
the NED recession velocity of 6350 km/s (from the H I Parkes All Sky Survey
Final Catalog) the 'superfit' comparison tool (Howell et al. 2005, Ap.J. 634,
1190) yields a spectral-feature age of 10 +/- 2 days and a good match to the
spectrum of SN 2005am (cf. IAUCs 8490, 8491) at 12 days after maximum light.


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                         (C) Copyright 2008 CBAT
2008 January 2                   (CBET 1190)              Daniel W. E. Green