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THE ASTRONOMER Electronic Circular No 2567      2009 Jly 25 18.32UT
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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TRANSIENT FEATURES ON JUPITER
F. Marchis, University of California, Berkeley (UCB) et. al., report 
that analysis of observations of Jupiter's atmosphere collected by P. 
Kalas, M. Fitzgerald and J. Graham (UCB) at the W. M. Keck II telescope 
during July 20.468-20.474 UT (central meridian longitudes 283-288 deg, 
System III) revealed the presence of an anomalous bright feature centred 
at planetographic coordinates 305 +/- 1.5 deg west, 57 +/- 1.5 deg 
south.  This feature is most likely linked to Wesley's dark spot (c/f TA 
E-Circular 2566), interpreted to be an impact in the atmosphere of 
Jupiter.  The scar, having an area of about 200 million square km and 
well seen in the Kp filter centred at 2.124 microns, has a complex 
shape, composed of an impact site with two prominent features separated 
by about 2 degrees and an ejecta field that extends some 10 deg toward 
the west.

SUPERNOVA 2009fu IN NGC 846
Discovery by K. Itagaki, Japan of a possible supernova (CBET 1832):
SN      2009 UT      R.A.  (2000.0)  Decl.    Mag.     Offset
2009fu  Jun  1.75   02 12 09.00  +44 33 55.0  15.7    36  "W,11  "S
Discovery using a 0.60-m f/7 reflector + CCD. SN 2003ja also appeared in 
NGC 846.

SUPERNOVA 2009fv IN NGC 6173
Discovery by Tim Puckett, A. Kroes and Jack Newton, USA of a possible 
supernova (CBET 1834):
SN      2009 UT      R.A.  (2000.0)  Decl.    Mag.     Offset
2009fv  Jun  2.34   16 29 44.22  +40 48 41.8  16.3     7.8"W, 0.4"S

SUPERNOVA 2009fw IN ESO 597-6
Discovery by the CHASE Project of a possible supernova (CBET 1836):
SN      2009 UT      R.A.  (2000.0)  Decl.    Mag.     Offset
2009fw  Jun  6.28   20 32 18.50  -19 43 59.6  16.6     4.8"W, 0.6"S

SUPERNOVA 2009fx IN SDSS J165311.27+235754.4
Discovery by the ROTSE Collaboration of a possible supernova (CBET 
1837):
SN      2009 UT      R.A.  (2000.0)  Decl.    Mag.     Offset
2009fx  May 29.34   16 53 11.28  +23 57 54.9  18.5     0.4"N
1991T-like type Ia supernova.

SUPERNOVA 2009fy IN SDSS J232405.23+163943.1
Discovery by the ROTSE Collaboration of a possible supernova (CBET 
1837):
SN      2009 UT      R.A.  (2000.0)  Decl.    Mag.     Offset
2009fy  Jun  1.04   23 24 05.13  +16 39 50.9  16.0:    1.4"W, 7.7"N
Also 1991T-like type Ia supernova.

SUPERNOVA 2009fz IN NGC 6209
Discovery by the CHASE Project of a possible supernova (CBET 1838):
SN      2009 UT      R.A.  (2000.0)  Decl.    Mag.     Offset
2009fz  Jun  8.18   16 54 48.37  -72 34 56.0  16.4    40.6"W,17.8"N
NGC 6209 was also the host galaxy of the type-Ia supernova 1998cx.

V5581 SAGITTARII = NOVA SAGITTARII 2009 No. 1
N. Samus reports that the GCVS team has assigned the designation V5581 
Sgr to the nova announced on IAUC 9041/TA E-Circular 2547.

Guy M Hurst