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THE ASTRONOMER Electronic Circular No 2677      2010 Oct 04 12.33UT
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 IN UGC 112
As long ago as September 18, an e-mail was received from David Grennan, 
Dublin, Ireland, reporting a possible magnitude 18.7 supernova in the 
galaxy UGC 112 during the course of searches for the UK Nova/Supernova 
Patrol.

The object was recorded on 2010 Sept 17 and the position measured as:
RA 00h 12m 07.47s DEC +41 45'24.9" (2000)

The image was taken at Raheny Observatory, Dublin, Ireland (MPC Code 
J41).  The instrument used was a 0.36-m f/4.9 Schmidt Cassegrain + CCD. 
Exposure 2x60 seconds stacked. David could find no trace of the suspect 
on his previous image of 2010 August 20 (LM 19.2) and also no trace on 
the POSS-II plates at this location.

The suspect was flagged with Dan Green of the Central Bureau on Sept 18. 
In meanwhile further images were obtained confirming the object was 
stationary including those with the 0.61-m Sierra Stars Cassegrain used 
remotely.

Various confirmatory images and measurements by Ron Arbour, Martin 
Mobberley and Tom Boles were also reported to the Central Bureau but no 
announcement or designation were made though it was added to the 
'Unconfirmed Objects' WWW page. On the basis a spectrum was apparently 
wanted, the Editor/Coordinator sought agreement from Chris Benn, head of 
the William Herschel Telescope to apply for time to which they agreed 
subject to scientific assessment. However as the earliest 'service 
night' was October 14, the matter was referred to Prof. Stephen J. 
Smartt in Belfast who found an earlier time slot for the Nordic Optical 
Telescope.

Stephen, in an e-mail received a few hours ago, has confirmed it to be a 
supernova, probably of type Ib/c but further details are awaited.

Congratulations to David Grennan on the discovery of his first 
supernova!

Guy M Hurst