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THE ASTRONOMER Electronic Circular No 2623      2010 Feb 13 21.03UT
Ed:Guy M Hurst, 16,Westminster Close, Kempshott Rise,  Basingstoke,
Hants, RG22 4PP,England.Telephone/FAX(01256)471074Int:+441256471074
INTERNET: GUY@TAHQ.DEMON.CO.UK      Backup: gmh@wdcc1.bnsc.rl.ac.uk
WORLD WIDE WEB                         http://www.theastronomer.org
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APPARENT SUPERNOVA IN MCG+12-09-056
ON 2010 Feb 12 we received an e-mail from Tom Boles notifying us of his 
detection of an apparent supernova in MCG +12-09-056 during the course 
of searches for the UK Nova/Supernova Patrol using a 0.35-m 
Schmidt-Cassegrain telescope and unfiltered CCD. The object, of 
magnitude 18.3, was recorded on a single night on Feb 11.868UT and 
located at:

RA 09h 35m 56.01s DEC +74o 00' 00.5" (2000), which is approximately 6.9" 
east and 3.3" north of the centre of the host galaxy.

Nothing is present at this position on Tom's images of 2006 Jan 20 and 
2006 Mar 5  (limiting mag 19.5) or on Digitised Sky Survey Plates from 
1991-12-06 (limiting red mag 20.5), and 1952-08-22 (limiting blue mag 
21.0).

In a further e-mail today (Feb 13) Tom reports he has obtained 
confirmation images (Feb 13.066UT) and measurements yield end figures: 
RA 56.03s, DEC 00.6". The magnitude remains the same as at discovery.

Due to a computer problem at the Central Bureau and Minor Planet Center, 
the discovery and designation have not yet been announced.

Congratulations to Tom on the discovery of his 128th supernova.

Guy M Hurst