IAU Central Bureau for Astronomical Telegrams

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IAUC 8488: 2005aj, 2005ak; 2005al; C/2005 B3, C/2005 B4

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IAUC number


                                                  Circular No. 8488
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Mailstop 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
CBAT@CFA.HARVARD.EDU (science)
URL http://cfa-www.harvard.edu/iau/cbat.html  ISSN 0081-0304
Phone 617-495-7440/7244/7444 (for emergency use only)


SUPERNOVAE 2005aj AND 2005ak
     Further to IAUC 8486, T. Puckett and J. Newton report the
discovery of an apparent supernova (mag 18) on an unfiltered CCD
frame taken with the 0.60-m automated supernova patrol telescope on
Feb. 18.02 UT (and confirmed on frames taken by G. Sostero,
Remanzacco, Italy, with a 0.25-m reflector on Feb. 18.87, the
magnitude also reported as 18).  The new object is located at R.A.
= 2h58m48s.85, Decl. = +75o45'13".8 (equinox 2000.0), which is
8".6 east and 51".7 north of the center of UGC 2411.  Nothing is
present at this location on images taken by Puckett on 2002 Feb. 11
and 2003 Feb. 21 (limiting mag about 20.0).
     Puckett adds that he and B. Kerns have discovered another
apparent supernova (mag 15.7) on an unfiltered CCD frame taken with
the 0.60-m automated supernova patrol telescope on Feb. 23.41 UT.
SN 2005ak is located at R.A. = 14h40m32s.06, Decl. = +3o30'37".1
(equinox 2000.0), which is 1".9 east and 2".9 north of the center
of the apparent host galaxy.  Nothing is present at this location
on images taken by Puckett on 2002 Feb. 13 and 2003 Apr. 1
(limiting mag about 20.0).  SN 2005ak was confirmed on CCD frames
taken by A. Sehgal, Osoyoss, BC, with a 0.5-m reflector on Feb.
24.45 at mag 15.7.


SUPERNOVA 2005al IN NGC 5304
     Further to IAUC 8482, C. Jacques reports the discovery of an
apparent supernova (mag 15.1) by E. Pimentel, T. Napoleao, C.
Colesanti, and himself on unfiltered CCD images taken at Belo
Horizonte, Brazil, on Feb. 24.16 and 26.95 UT.  SN 2005al is
located at R.A. = 13h50m00s.33, Decl. = -30o34'34".2 (equinox
2000.0), which is 14".8 west and 7".5 north of the center of NGC
5304. Nothing is visible at this location on a CCD image taken on
Feb. 15.29 (limiting mag 18.3) or on a Digitized Sky Survey image
from 1975 (limiting red mag 20.0).


COMETS C/2005 B3 AND C/2005 B4 (SOHO)
     Continuation to IAUC 8487 (C/2005 B3 is a Kreutz sungrazer,
while C/2005 B4 belongs to the Meyer group):

 Comet       2005 UT      R.A.(2000)Decl.   Inst.  F    MPEC
 C/2005 B3   Jan. 26.821  20 53.6  -20 26   C3     XL   2005-D18
 C/2005 B4        30.688  20 56.6  -16 11   C2     BZ   2005-D18

                      (C) Copyright 2005 CBAT
2005 February 27               (8488)            Daniel W. E. Green

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