[IAUC] CBET 1667: 20090120 : SUPERNOVA 2009H IN NGC 1084

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                                                  Electronic Telegram No. 1667
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
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SUPERNOVA 2009H IN NGC 1084
     S. Benetti, Istituto Nazionale di Astrofisica, Osservatorio Astronomico
di Padova; S. Valenti, Belfast University; and A. Magazzu and A. Harutyunyan,
Telescopio Nazionale Galileo (TNG), report that a spectrum of 2009H (cf. CBET
1656), obtained on Jan. 19.95 UT with the 3.5-m TNG (+ DOLORES; range 400-900
nm, resolution 1.0 nm), shows it to be that of a highly reddened type-II
supernova about one week after explosion.  The best fit to this spectrum
found by GELATO (Harutyunyan et al. 2008, A.Ap. 488, 383) is with early
spectra of SN 2005cs at several days after explosion (Pastorello et al. 2006,
MNRAS 370, 1752).  The expansion velocity, deduced from the H-alpha FWHM, is
about 11500 km/s.
     E. Prosperi, Castelmartini, Italy, reports unfiltered CCD magnitude 16.8
for SN 2009H on Jan. 16.857 UT (0.35-m f/10 Schmidt-Cassegrain reflector).


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                         (C) Copyright 2009 CBAT
2009 January 20                  (CBET 1667)              Daniel W. E. Green