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THE ASTRONOMER Electronic Circular No 2516      2009 Jan 04 14.53UT
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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SUPERNOVA 2009B IN UGC 4423
On 2009 January 2 an e-mail was received from Tom Boles of Coddenham, 
England reporting his discovery of a possible supernova of magnitude 
17.2 in UGC 4423 during searches for the UK Nova/Supernova Search 
Programme.

The discovery was made on an unfiltered CCD image of 2009 Jan. 2.806 UT 
using a 0.35-m Schmidt-Cassegrain telescope. The new object is located 
at:
RA 8h 30m 51.47 DEC +74 41' 08.1" (2000), approximately 7.6" W and 6.8"S 
of the host galaxy.

SN 2009B was confirmed at mag 17.3 by Ron Arbour (South Wonston,
England) on an unfiltered image taken on Jan.3.865; Tom's measures of 
end figures from Arbour's image 51.48s, 07.9".  Nothing is present at 
this position on Tom's images of 2007 Apr. 11 and 2008 Feb. 8 (limiting 
mag 19.5) nor on Digitised Sky Survey plates from 1997 Feb. 10 (limiting 
red mag 20.5) and 1998 Jan. 1 (limiting blue mag 21.0).

P. Challis, Harvard-Smithsonian Center for Astrophysics (CfA), on
behalf of the CfA Supernova Group, reports on CBET 1646 that a spectrum 
of Jan. 3 UT by M. Calkins with the F. L. Whipple Observatory 1.5-m 
telescope (+ FAST), shows it to be a type-II-P supernova about week 
after explosion.

Congratulations to Tom on the discovery of his 118th supernova.

Guy M Hurst