Electronic Telegram No. 2440
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
CBAT Director:  Daniel W. E. Green; Hoffman Lab 209; Harvard University;
 20 Oxford St.; Cambridge, MA  02138; U.S.A.
e-mail:  cbatiau@eps.harvard.edu (alternate cbat@iau.org)
URL http://www.cbat.eps.harvard.edu/index.html
Prepared using the Tamkin Foundation Computer Network


SUPERNOVA 2010hh IN NGC 6524
     G. H. Marion, Harvard-Smithsonian Center for Astrophysics (CfA), on
behalf of the CfA Supernova Group, reports on spectroscopic observations
(range 340-740 nm) of 2010hh (cf. CBET 2435) obtained on Sept. 3 UT by P.
Berlind with the F. L. Whipple Observatory 1.5-m telescope (+ FAST).
Cross-correlation with a library of supernova spectra using the "Supernova
Identification" code (SNID; Blondin and Tonry 2007, Ap.J. 666, 1024) shows
that the best fit for the spectrum of 2010hh is to that of the sub-luminous
(1991bg-like) type-Ia supernova 1986G near maximum light.
     Toru Yusa, Osaki, Japan, reports that he observed 2010hh remotely
using a 0.25-m f/3.4 refrector (+ SBIG ST-10XME camera) located at the RAS
Observatory near Mayhill, NM, U.S.A., on Sept. 3.13 UT; his unfiltered CCD
images (limiting mag 19.3) yield magnitude 17.7.  Further unfiltered CCD
images (limiting mag 19.5) taken by Yusa with a 0.30-m f/9.9 reflector at
Osaki, Japan, on Sept. 3.596 yield mag 17.6.


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      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2010 CBAT
2010 September 3                 (CBET 2440)              Daniel W. E. Green