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IAUC 6470: 1996 R1; 1986P

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                                                  Circular No. 6470
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Postal Address: Central Bureau for Astronomical Telegrams
Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
BMARSDEN@CFA.HARVARD.EDU or DGREEN@CFA.HARVARD.EDU (science)
Phone 617-495-7244/7440/7444 (for emergency use only)


COMET 1996 R1
     Carl W. Hergenrother, University of Arizona, reports his
discovery of a comet on films taken by Timothy B. Spahr, University
of Florida, and himself at the University of Arizona's site east of
Tucson.  The following observations are available:

     1996 UT             R.A. (2000) Decl.        m1    Observer
     Sept. 7.28437    0 00 12.45   +39 20 45.8   14     Hergenrother
           7.31296    0 00 00.49   +39 19 25.7            "
           8.13036   23 54 03.58   +38 38 45.7            "
           8.36182   23 52 21.78   +38 26 55.9   13.4   Offutt
           8.36434   23 52 20.67   +38 26 47.8   13.2     "
           8.36612   23 52 19.87   +38 26 42.0   13.2     "
           8.36873   23 52 18.73   +38 26 33.6   13.0     "
           8.37292   23 52 16.91   +38 26 21.2   13.2     "
           8.37875   23 52 14.26   +38 26 03.4          Hergenrother
           8.38361   23 52 12.17   +38 25 48.6            "

C. W. Hergenrother and T. B. Spahr (Mount Bigelow).  0.41-m f/3
  Schmidt.  Comet well condensed, faint tail extending a few arcmin
  to the south.  Their visual estimates on Sept. 8 suggest m1 about
  11-12.
W. Offutt (Cloudcroft).  0.6-m f/7 Ritchey-Chretien + CCD.  Roughly
  circular coma about 4'.25 across with 35" condensation.  No tail
  on 60-second exposures.


SUPERNOVA 1986P IN NGC 5763
     J. Mueller reports her discovery of an apparent supernova of
mag about 17 on a IIIa-J plate taken with the 1.2-m Oschin Schmidt
Telescope on 1986 July 2 by E. Helin and Mueller in the course of
the second Palomar Sky Survey.  The candidate is located 8" west
and 6" south of the center of NGC 5763 (R.A. = 14h49m.0, Decl. =
+12 29', equinox 2000.0).  A Palomar J plate taken on 1993 Mar. 3
by C. Brewer and Mueller shows nothing at the position; N. Reid
also reports that an F plate taken on 1986 June 13 by W. Sargent
and Mueller shows no object at the position, indicating the
apparent supernova was < 3 weeks old when photographed.  The image
quality corresponds to nearby images indicating that it is very
unlikely that the object is asteroidal in nature or a plate defect.

                      (C) Copyright 1996 CBAT
1996 September 8               (6470)            Daniel W. E. Green

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