-------------------------------------------------------------------
THE ASTRONOMER Electronic Circular No 2669      2010 Aug 25 10.19UT
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
-------------------------------------------------------------------
SUPERNOVA 2010ha IN IC 1764
On 2010 August 19 an e-mail was received from Tom Boles reporting his 
discovery of an optical transient of magnitude 18.9 in IC 1764 during 
searches for the UK Nova/Supernova Patrol. The object was first detected 
on 2010 Aug 19.058 on multiple images using a 0.35-m Schmidt-Cassegrain 
telescope and was located at:
RA 02h 00m 24.84s DEC +24 34' 43.3" (2000), which is approximately 
19.8"E and 6.7"S of the centre of the host galaxy.
Nothing is present at this position on Tom's images of 2005 Aug 28 
(limit 19.5) and 2008 Feb 10 (limit 19.5) nor on Digitised Sky Survey 
Plates from 1991 Oct 9 (limiting red mag 20.5), and 1988 Oct 7 (limiting 
blue mag 21.0). The absolute magnitude was faint but perhaps due to 
obscuration.

He also enlisted the assistance of J. Brimacombe, Cairns, Australia who, 
using a remotely operated 50-cm reflector (+ STL6K camera + clear 
filter) at New Mexico Skies Observatory, Mayhill, NM, U.S.A., confirmed 
the object on Aug. 20.393 (limiting mag 20.5), yielding position end 
figures 24s.84 +/- 0s.01, 43".7.

After consultation with various professionals, the object has been 
announced on CBET 2423 by Dan Green and designated supernova 2010ha. 
Congratulations to Tom on the discovery of his 133rd supernova.

SUPERNOVA 2010gs IN PGC 65331
Discovery by La Sagra Survey of a possible supernova (CBET 2397):
SN      2010 UT      R.A.  (2000.0)  Decl.    Mag.     Offset
2010gs  Aug  1.87   20 45 39.51  -05 35 11.8  16.6    5  "W, 10  "N

SUPERNOVA 2010gt IN ESO 187-21
Discovery by Berto Monard of a possible supernova (CBET 2399):
SN      2010 UT      R.A.  (2000.0)  Decl.    Mag.     Offset
2010gt  Aug  2.86   20 51 22.38  -52 32 48.1  18.0    3  "E, 11  "N

SUPERNOVA 2010gu IN 2MASX J22192259-3658278
Discovery by CRTS of a possible supernova (CBET 2407):
SN      2010 UT      R.A.  (2000.0)  Decl.    Mag.     Offset
2010gu  Aug  7.67   22 19 23.16  -36 58 24.5  18.0    7.0"E,  3.3"N
The host galaxy has redshift z = 0.056.

SUPERNOVA 2010gv IN ANONYMOUS GALAXY
Discovery by Koichi Itagaki of a possible supernova (CBET 2404/2408):
SN      2010 UT      R.A.  (2000.0)  Decl.    Mag.     Offset
2010gv  Aug  9.70   17 58 22.56  +50 47 34.0  16.4
The faint presumed host galaxy is SDSS J175822.33+504733.1.
J. Sollerman and J. Fynbo, Dark Cosmology Center, Niels Bohr Institute, 
Copenhagen University, on behalf of N. B. Andreasen, S. J. Jakobsen, and 
C. Heje Groenbech, DARS Summer School, report on optical spectroscopy 
with the Nordic Optical Telescope on Aug. 11.9 UT.  The fully reduced 
spectrum shows this object to be a young type-Ia supernova at, or 
slightly before, maximum light.

Guy M Hurst