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THE ASTRONOMER Electronic Circular No 2646      2010 May 26 10.21UT
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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JUPITER
In a recent NASA bulletin, they report that the South Equatorial belt of 
Jupiter has faded considerably, usually a 'signature' belt for observers 
of the planet.

Anthony Wesley of Australia who recently detected a scar on the planet 
suggesting the impact by an asteroid or comet has also noted the current 
change of appearance of the planet. It is possible that rather than a 
complete disappearance of the belt it may instead be covered by higher 
clouds.

Glenn Orton, Jet Propulsion Laboratory is quoted in the NASA bulletin as 
saying that it is possible some 'ammonia cirrus' has formed on top of 
the SEB, hiding it from view. He adds that on Earth, white wispy cirrus 
clouds are made of ice crystals. On Jupiter, the same sort of clouds can 
form, but the crystals are made of ammonia (NH3) instead of water (H20).

Observations and images of Jupiter would be welcomed. Please send to the 
planetary editor, Mark Kidger with a copy to the main editor.

SUPERNOVA 2010bk IN NGC 4433
Discovery by the CHASE Project of a possible supernova (CBET 2231):
SN      2010 UT      R.A.  (2000.0)  Decl.    Mag.     Offset
2010bk  Apr  4.19   12 27 38.47  -08 16 39.3  17.6    2.8"W,  9.9"N

SUPERNOVA 2010bl IN MCG -03-32-018
Discovery by Jack Newton and T. Puckett of a possible supernova (CBET 
2233):
SN      2010 UT      R.A.  (2000.0)  Decl.    Mag.     Offset
2010bl  Apr  7.25   12 40 34.92  -20 33 40.8  16.5    2.0"W,  3.9"N

SUPERNOVA 2010bm IN ANONYMOUS GALAXY
Discovery by CRTS of a possible supernova (CBET 2234):
SN      2010 UT      R.A.  (2000.0)  Decl.    Mag.     Offset
2010bm  Apr  4.32   11 22 04.65  +09 26 44.5  18.3       --
Similar to 1999em type-IIP

SUPERNOVA 2010bn IN ANONYMOUS GALAXY
Discovery by CRTS of a possible supernova (CBET 2234):
SN      2010 UT      R.A.  (2000.0)  Decl.    Mag.     Offset
2010bn  Apr. 5.32   11 44 55.72  -05 04 44.2  17.2    2.6"W, 3.5"S
Type-Ia shortly before maximum when a spectrum of Apr 8 taken.

SUPERNOVA 2010bo IN ANONYMOUS GALAXY
Discovery by the CHASE Project of a possible supernova (CBET 2238):
SN      2010 UT      R.A.  (2000.0)  Decl.    Mag.     Offset
2010bo  Apr 10.27   15 56 22.57  -31 32 09.8  15.8    5.9"W,  3.4"N

Guy M Hurst