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THE ASTRONOMER Electronic Circular No 2225      2006 Apr 27 18.39UT
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 2006bo IN UGC 11578
On 2006 April 5, an e-mail was received from Tom Boles, Coddenham, 
England reporting his detection of a possible supernova in the galaxy 
UGC 11578 during the course of searches for the UK Nova/Supernova 
Patrol. The object, of magnitude 17.6, was recorded on a single 
(trailed) unfiltered CCD image was obtained on Apr. 5.148UT using a 
0.35-m Schmidt-Cassegrain telescope.

The following position has been measured:
RA 20h 30m 41.90s DEC +09 11' 40.8" (2000), 13.5"W and 12.4" N of the 
centre of the host galaxy.

The suspect is not present on Tom's images of 2005 Oct 9 and Nov 28 
(limiting mag 19.5) and it is also not recorded on DSS II red (1990.636 
limiting mag 20.5) or blue plates (1998.457 limiting
mag 21.0).

In a further e-mail received on April 7, Tom reported that his 
confirmatory image of April 7.151UT yielded end figures of RA 41.91s and 
DEC 40.7". New offsets of 12.1"W and 14.3"N were also obtained.

Berto Monard also obtained confirmation on April 7.137UT and estimated 
the object at magnitude 17.1 using the 0.30-m Schmidt-Cassegrain 
telescope at Bronberg Observatory near Pretoria, South Africa. End 
figures of RA 41.95s and DEC 40.8" were obtained.

The object has been designated supernova 2006bo and announced on IAUC 
8699. Congratulations to Tom on the discovery of his 102nd supernova.

V478 HERCULIS
Jeremy Shears has detected the recurrent objects programme star V478 Her 
in a possible outburst: 2006 Apr 21.950UT, 16.1C.
Gary Poyner adds that the usual quiescent level is around 16.5-17.5 
(AAVSO quick look). V478 Her has only been seen in outburst on one 
previous occasion - 2001 June, when Tonny Vanmunster detected superhumps 
identifying the UGSU nature of the star for the first time.  The 
magnitude reached during that superoutburst was 15.5C.
It is quite possible that the current level constitutes a normal
outburst, but of course a superoutburst cannot be ruled out.
The position is: 17h 21m 06  +23 39.6 (2000.0)
You will find charts on the AAVSO web site with Henden/Sumner
photometry.

SUPERNOVA 2006bm IN ANONYMOUS GALAXY
Discovery by Tim Puckett and Giovanni Sostero of a possible supernova 
(IAUC 8699):
SN      2005 UT      R.A.  (2000.0)  Decl.    Mag.     Offset
2006bm  Apr . 5.195 11 18 21.41  +28 12 43.5  18.1   4.1"W,10.5"N

SUPERNOVA 2006bn IN UC 4926
Discovery by Berto Monard of a possible supernova (IAUC 8699):
SN      2005 UT      R.A.  (2000.0)  Decl.    Mag.     Offset
2006bn  Apr.  5.087 20 00 15.75  -38 34 18.3  18.4  42" E, 24" N

Guy M Hurst