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THE ASTRONOMER Electronic Circular No 2544      2009 Apr 20 18.17UT
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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COMET C/2009 F4 (McNAUGHT)
Robert McNaught reports his discovery on IAUC 9032 of a strongly 
condensed comet on CCD images taken with the 0.5-m Uppsala Schmidt 
reflector at Siding Spring on Mar 19:
      2009 UT             R.A. (2000) Decl.       Mag.   Observer
      Mar. 19.68311   15 47 03.25   -23 10 41.8   17.8   McNaught

It is noted from the provisional orbital elements by Brian Marsden that 
perihelion is now until 2012.

      T = 2012 Jan. 10.967 TT          Peri. = 256.890
                                       Node  =  53.687   2000.0
      q = 5.80600 AU                   Incl. =  80.138
(MPEC 2009-F54)

SUPERNOVAE 2009aw AND 2009ax
These designations refer to supernovae of r mag 19 or fainter reported 
by D. Sand, Harvard-Smithsonian Center for Astrophysics and Las Cumbres 
Observatory Global Telescope Network et. al. (CBET 1727)

SUPERNOVA 2009ay IN NGC 6479
Discovery by Tim Puckett and M. Peoples (USA) of a possible supernova 
(CBET 1728):
SN      2009 UT      R.A.  (2000.0)  Decl.    Mag.     Offset
2009ay  Mar 20.41   17 48 22.97  +54 08 54.7  16.4    12.1"E, 0.4"N
The type-Ic supernova 2007cl also appeared in this galaxy.

SUPERNOVA 2009az IN UGC 6036
Discovery by LOSS of a possible supernova (CBET 1729):
SN      2009 UT      R.A.  (2000.0)  Decl.    Mag.     Offset
2009az  Mar 20.30   10 55 56.22  +36 51 43.0  19.3    11.5"E, 2.0"N

SUPERNOVA 2009ba IN IC 582
Discovery by Tim Puckett and R. Moore (USA) of a possible supernova 
(CBET 1730):
SN      2009 UT      R.A.  (2000.0)  Decl.    Mag.     Offset
2009ba  Mar 21.18   09 59 01.92  +17 49 00.1  18.4    24.1"E, 1.9"S

SUPERNOVA 2009bb IN NGC 3278
Discovery by the CHASE Project of a possible supernova (CBET 1731):
SN      2009 UT      R.A.  (2000.0)  Decl.    Mag.     Offset
2009bb  Mar 21.11   10 31 33.87  -39 57 30.0  17.0:   17.0"W,13.5"S

SUPERNOVAE 2009bc-2009bl AND CATACLYSMIC VARIABLE
According to CBET 1732, astronomers of the Palomar Transient Factory 
have found ten supernovae on images of Mar 17 of magnitude 17.8 or 
fainter in a search of 498 square degrees. They also discovered a 
cataclysmic variable was at mag R = 19.5 on Mar. 17.1476 UT, and located 
at:
RA 09h 15m 36.571s DEC +50o 34' 51.48" (2000).

Guy M Hurst