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THE ASTRONOMER Electronic Circular No 2641      2010 Apr 26 18.25UT
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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POSSIBLE NOVA IN SCORPIUS
Koichi Nishiyama and Fujio Kabashima, Japan report on CBET 2262 their 
discovery of another possible nova of magnitude 8.6 on two 40-s 
unfiltered CCD frames (limiting magnitude 13.1) taken around 2010 Apr. 
25.79UT using a 105-mm f/4 camera lens + CCD. Five follow-up CCD frames 
of Apr. 25.79 using a Meade 200R 0.40-m f/9.8 reflector yield the 
following precise position:

RA 16h 55m 13.16s DEC -38 03' 46.9"(2000)

Nothing is visible at this position on their frames of Apr. 23.78 
(limiting mag 12.9) and 24.75 (limiting mag 13.2) or on a Digitised Sky 
Survey image from 1995 June 4 (limiting red mag 18.0).

SUPERNOVAE 2010ap, 2010aq, 2010ar
The above designations assigned to Pan-STARRs Medium Deep Survey
are of objects of magnitude 19.2 or fainter found in 2010 Feb.

SUPERNOVA 2010as IN NGC 6000
Discovery by the CHASE Project of a possible supernova (CBET 2215):
SN      2010 UT      R.A.  (2000.0)  Decl.    Mag.     Offset
2010as  Mar 19.22   15 49 49.23  -29 23 09.7  15.5    3.1"W,  2.0"N
NGC 6000 was also the host galaxy of the type-II supernova 2007ch

SUPERNOVA 2010at IN MCG +13-09-10
Discovery by J. Newton and T. Puckett of a possible supernova (CBET 
2216):
SN      2010 UT      R.A.  (2000.0)  Decl.    Mag.     Offset
2010at  Mar 19.27   12 04 59.47  +76 07 52.3  17.2   29.5"W,  7.5"S

SUPERNOVA 2010av IN IC 1099
Discovery by LOSS of a possible supernova (CBET 2218):
SN      2010 UT      R.A.  (2000.0)  Decl.    Mag.     Offset
2010av  Mar 19.44   15 06 57.01  +56 30 27.8  17.9   18.6"E,  5.9"S
Silverman reports a spectrum of Mar 22 suggests type-Ib/c then a few 
days past maximum.

SUPERNOVA 2010aw IN ANONYMOUS GALAXY
Discovery by LOSS of a possible supernova (CBET 2218):
SN      2010 UT      R.A.  (2000.0)  Decl.    Mag.     Offset
2010aw  Mar 19.54   17 16 12.28  +31 47 36.4  18.3   19.0"E,  3.1"N
Silverman relays this is a young type-II supernova

SUPERNOVA 2010ax IN ANONYMOUS GALAXY
Discovery by LOSS of a possible supernova (CBET 2218):
SN      2010 UT      R.A.  (2000.0)  Decl.    Mag.     Offset
2010ax  Mar 15.1    14 41 53.42  +10 45 01.4  17      6  "E,  6  "N

CORRECTION
The date of TA E-Circular 2640 should have read 2010 Apr 25.

Guy M Hurst