[IAUC] CBET 1635: 20081228 : SUPERNOVA 2008im IN PGC 14286

[IAUC mailing list]

                                                  Electronic Telegram No. 1635
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS en CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
CBAT en CFA.HARVARD.EDU (science)
URL http://www.cfa.harvard.edu/iau/cbat.html


SUPERNOVA 2008im IN PGC 14286
     A. Oksanen, Muurame, Finland, reports the discovery of an apparent
supernova (mag 17.3) by Mikko Paivinen (Rajamaki, Finland) and Petri
Kehusmaa (Hyvinkaa, Finland) on a 90-s unfiltered exposure (limiting mag
18.3) obtained by Paivinen on Dec. 26.673 UT with a 28-cm Schmidt-Cassegrain
telescope (+ SBIG ST-2000 CCD camera).  The new object is located at R.A. =
4h01m02s.15, Decl. = +74o05'48".5 (equinox 2000.0), which is about 50" north
of the center of the galaxy PGC 14286.  Nothing is visible at this position
on U.K. Schmidt Telescope plates (via the Digital Sky Survey; limiting red
mag 20.3 on 1996 Dec. 7; limiting infrared mag 20.1 on 1997 Nov. 23).
Kehusmaa obtained several unfiltered confirmation images (limiting mag 19.0)
of 2008im at mag 17.6 (yielding position end figures 02s.14, 49".3) on Dec.
27.694 with a 20-cm Schmidt-Cassegrain telescope.  Apparently all the above
astrometry and photometry were measured by A. Oksanen (all the magnitudes
measured using an R magnitude from a single USNO-A2.0 reference star).
An R_c image taken by Oksanen on Dec. 27.833 with a 40-cm Ritchey-Chretien
telescope yields mag R = 17.4 and position end figures 02s.11, 49".1.
An image of 2008im by Oksanen is posted at the following website URL:
http://murtoinen.dyndns.org/ccd/Arto/pgc14286/PGC14286.jpg.


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      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2008 CBAT
2008 December 28                 (CBET 1635)              Daniel W. E. Green