Electronic Telegram No. 2899
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 2011hp IN NGC 4219 = PSN J12162547-4319469
     L. A. G. Monard, Calitzdorp, Western Cape, South Africa, reports his
discovery of an apparent supernova (magnitude 15.7) on several unfiltered CCD
images taken on Nov. 3.095 UT at the Klein Karoo Observatory, with confirming
images showing the new object at magnitude 15.8 on Nov. 5.097.  The variable
is located at R.A. = 12h16m25s.47, Decl. = -43d19'46".9 (equinox 2000.0; UCAC2
reference stars); which is 20" west and 14" south of the core of the Sbc-type
galaxy NGC 4219.  Nothing is visible at this position on Digitized Sky Survey
images (limiting red mag 20.5) or on Monard's previous image of this galaxy
taken on 2011 July 31.741 (limiting mag 18.5).  The new object was designated
PSN J12162547-4319469 when it was posted on the Central Bureau's TOCP webpage
and is here designated SN 2011hp based on the spectroscopic confirmation
reported below.  Joseph Brimacombe, Cairns, Australia, reports mag 16.6 and
position end figures 25s.52, 49".9 for 2011hp from an unfiltered CCD image
taken on Nov. 4.751; he has posted his image at the following website URL:
http://www.flickr.com/photos/43846774@N02/6313285907/.  Monard notes that SN
2011am (cf. CBET 2667) occurred in the same galaxy earlier this year.

     M. Stritzinger, Oskar Klein Centre, Stockholm University; and R. J.
Foley, Harvard-Smithsonian Center for Astrophysics, on behalf of the
Millennium Center for Supernova Science, report that they have obtained a
spectrum (range 360-965 nm) of 2011hp on Nov. 4.2 UT with the Gemini South
telescope (+ GMOS).  The variable appears to be a type-Ic supernova around
maximum light.  The Si II 635.5-nm feature is relatively strong for a type-Ic
supernova.  Cross-correlation with a library of supernova spectra using SNID
(Blondin and Tonry 2007, Ap.J. 666, 1024) provides reasonable matches with
SN 1999ex at five days prior to maximum brightness and to SN 1994I at two days
past maximum brightness.


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      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2011 CBAT
2011 November 5                  (CBET 2899)              Daniel W. E. Green