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IAUC 8334: 2004bl; C/2003 N2, O4-O8, P1,, P2; C/2004 F4

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                                                  Circular No. 8334
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)


SUPERNOVA 2004bl IN MCG +00-31-42
     Further to IAUC 8329, H. Pugh and W. Li report the LOSS
discovery, on KAIT images taken on Apr. 29.31 and 30.28 UT, of an
apparent supernova (mag about 16.0) located at R.A. = 12h15m12s.08,
Decl. = -3o26'18".3 (equinox 2000.0), which is 7".9 east and 10".2
north of the nucleus of MCG +00-31-42.  A KAIT image taken on Apr.
12.32 showed nothing at this position (limiting mag about 19.0).


COMETS C/2003 N2, O4-O8, P1, AND P2 (SOHO)
     Further to IAUC 8333, K. Battams reports measurements for
additional Kreutz sungrazing comets found on SOHO C3 images by J.
Sachs (C/2003 O4, O5, O8), X.-m. Zhou (C/2003 O6), and M. Boschat
(C/2003 O7, P1, P2).  C/2003 O5 was also observed in the C2
coronagraph.  The reduced astrometry by R. Kisala and orbital
elements by B. G. Marsden appear on the MPECs cited below.
Contrary to what was stated on IAUC 8333, C/2003 N2 was only
observed in the C3 coronagraph.

  Comet         2003 UT          R.A. (2000) Decl.       MPEC
  C/2003 O4     July 18.446       7 35.6  +18 09       2004-H87
  C/2003 O5          20.096       7 35.0  +16 46       2004-H87
  C/2003 O6          24.388       7 56.9  +18 04       2004-H88
  C/2003 O7          25.904       8 05.4  +18 05       2004-H88
  C/2003 O8          30.138       8 21.4  +17 16       2004-H88
  C/2003 P1     Aug.  2.929       8 34.3  +16 14       2004-H88
  C/2003 P2           3.763       8 37.7  +16 07       2004-H88


COMET C/2004 F4 (BRADFIELD)
     Further visual total-magnitude and tail-length/p.a. estimates:
Apr. 25.15 UT, 4.0, 8.5 deg in p.a. 300 deg (J. J. Gonzalez, Leon,
Spain, naked eye); 26.14, 4.6, 2.5 deg in p.a. 310 deg (N. Biver,
Poigny-la-foret, France, 7x50 binoculars); 27.78, 5.0, 10 deg in
p.a. 305 deg (Y. Nagai, Nagano, Japan, 7x35 binoculars); 28.79,
4.7, 6 deg in p.a. 300 deg (K. Yoshimoto, Yamaguchi, Japan, 7x35
binoculars); 29.02, 5.3, 4 deg in p.a. 303 deg (A. Baransky, Bucha,
Ukraine, 10x50 binoculars); 30.08, 5.8, 3.5 deg in p.a. 290 deg (K.
Hornoch, Lelekovice, Czech Republic, 10x50 binoculars).

                      (C) Copyright 2004 CBAT
2004 April 30                  (8334)            Daniel W. E. Green

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