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THE ASTRONOMER Electronic Circular No 2672     2010 Sept 4 18:00UT
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 2010hl IN MCG +10-24-122
Tom Boles, Coddenham, England, reports the discovery of an apparent
supernova (mag 17.5) on an unfiltered CCD image taken on Sept. 2.904 UT with
a 0.35-m Schmidt-Cass. The object is located at R.A. = 17h16m33s.34 +/- 0s.01,
Decl. = +57o52'08".3 +/- 0".1 (equinox 2000.0), which is approximately 2".0
west and 0".4 south of the center of MCG +10-24-122. Nothing is present at
this position on Tom's images from 2010 July 18 and May 10 (limiting mag
19.5) or on Digitized Sky Survey plates from 1993 Apr. 22 (limiting red mag
20.5) and 1991 Apr. 16 (limiting blue mag 21.0). Tom also measured
magnitude V = 17.4 for 2010hl on Sept. 3.1754 using an image taken with the
0.61-m Cassegrain reflector at the Sierra Stars Observatory, Alpine County,
California (limiting mag 20.5). He has uploaded a x2 image to the following
website URL: 

http://www.supernova.myzen.co.uk/images/mcg10-24-122(60)x2-marked.jpg

Congratulations to Tom on the discovery of his 136th supernova.

Martin Mobberley