Electronic Telegram No. 1942
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://www.cfa.harvard.edu/iau/cbat.html


SUPERNOVA 2009iw IN IC 2160
     C. Drescher, Calamvale, Queensland, Australia, reports the discovery of
an apparent supernova (red mag 15.0) by Stuart Parker (Oxford, Canterbury,
New Zealand) on a 55-s unfiltered CCD image taken on Sept. 15.620 UT with
a 35-cm Celestron C14 f/6.3 reflector (+ ST8 CCD camera).  Parker obtained
a confirming image on Sept. 16.317, showing 2009iw at mag 14.6.  The new
object is located at R.A. = 5h55m25s.63 +/- 0s.01, Decl. = -76o55'15".9
(equinox 2000.0; average of two images; reference-star catalogue USNO-B1.0;
measurer Drescher), which is 10" west and 3" south of the nucleus of IC 2160.
Nothing is visible at this position on an image taken on July 17.664 by Parker
(limiting red magnitude 18.0) or on a Digitized Sky Survey U.K. Schmidt
telescope image from 1988 Feb. 22 (limiting red magnitude 18.0).  The
peculiar-type-Ia supernova 2009J (cf. CBETs 1661, 1665) also appeared in IC
2160, some 15" to the southwest of 2009iw.


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      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2009 CBAT
2009 September 16                (CBET 1942)              Daniel W. E. Green