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IAUC 8073: 2003as; 2003L; C/2000 G3; C/2002 V3, V4, V5, X6, Y2 (SOHO)

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                                                  Circular No. 8073
Central Bureau for Astronomical Telegrams
Mailstop 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
URL http://cfa-www.harvard.edu/iau/cbat.html  ISSN 0081-0304
Phone 617-495-7440/7244/7444 (for emergency use only)

SUPERNOVA 2003as IN MCG +08-10-7
     Further to IAUC 8072, T. Boles reports the discovery of
another apparent supernova (mag 16.8) on an unfiltered CCD image
taken on Feb. 13.909 and 14.765 UT.  The new object is located at
R.A. = 5h28m45s.81, Decl. = +49o52'59".1, which is approximately
10".1 east and 1".7 south of the center of MCG +08-10-7.  Nothing
was visible at this position on Boles' images taken on Jan. 5 and
26 (limiting mag 19.0) and on Palomar Sky Survey red (1998 Oct. 8)
or blue (1994 Dec. 3) plates.

     S. Kulkarni and D. W. Fox, California Institute of Technology,
report that a 30000-s exposure with the Chandra ACIS-S detector
beginning at Feb. 10.154 UT detected 41 +/- 6 counts from SN 2003L:
"The best-fit power spectrum yields photon index 1.4 +/- 0.4 for an
assumed column density of 2.5 x 10**20 cm**-2 (2-10-keV flux of 6 x
10**-15 erg cm**-2 s**-1); equivalently, a blackbody of temperature
0.5 +/- 0.1 keV (2-10-keV flux of 2 x 10**-15 erg cm**-2 s**-1) is
also acceptable.  The x-ray-to-radio luminosity ratio of SN 2003L
is roughly half that observed for SN 1998bw at a similar epoch."

COMETS C/2000 G3; C/2002 V3, V4, V5, X6, Y2 (SOHO)
     Further to IAUC 8065, D. Hammer reports measurements for six
additional comets found on SOHO C2 website images by R. Kracht
(C/2000 G3, C/2002 V4, C/2002 X6), D. Evans (C/2002 V3), and R.
Matson (C/2002 V5, 2002 Y2).  C/2000 G3, C/2002 V3, and C/2002 V5
were also visible in C3-coronagraph images.  The reduced astrometry
and orbital elements by B. G. Marsden appear on the MPECs cited
below.  C/2002 V4, C/2002 X6, and C/2002 Y2 are members of the
Meyer group; C/2002 V5 is a member of the Marsden group; the others
are Kreutz sungrazers.

  Comet         2000 UT          R.A. (2000) Decl.       MPEC
  C/2000 G3     Apr. 10.404       1 27.1   + 5 57       2003-B42

  Comet         2002 UT          R.A. (2000) Decl.       MPEC
  C/2002 V3     Nov.  9.179      14 50.3   -18 28       2003-B42
  C/2002 V4           9.579      14 55.2   -15 36       2003-B42
  C/2002 V5          11.854      15 05.5   -18 54       2003-C02
  C/2002 X6     Dec.  2.314      16 32.7   -20 50       2003-C02
  C/2002 Y2          19.579      17 51.0   -22 27       2003-C02

                      (C) Copyright 2003 CBAT
2003 February 14               (8073)            Daniel W. E. Green

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