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IAUC 7939: 2002 O4

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                                                  Circular No. 7939
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)


COMET 2002 O4
     On July 22, a report of an apparent visual comet discovery
was received from Sebastian Hoenig, Dossenhiem, Germany. The object
clearly showed motion to the north. Due to poor initial positions
and bright moon, attempts to recover the object visually by A. Hale
(Cloudcroft, NM) and Hoenig were unsuccessful. On July 27, S. Nakano
(Sumoto, Japan) reported that K. Kadota (Ageo, Saitama, Japan),
following a request by A. Nakamura (Kuma, Ehime, Japan), successfully
imaged a comet while searching for the object reported on July 22.
Additional observations were received after the comet was posted on
the NEO Confirmation Page. Selected observations appear below.

     2002 UT             R.A. (2000) Decl.        m1    Observer
     July 22.003     23 25         +32 42        12     Hoenig
          27.64622   23 22 22.65   +40 36 26.1          Kadota
          27.66133   23 22 20.99   +40 38 06.1   12.1     "
          27.83285   23 22 03.47   +40 57 03.1   15.0   Griesser
          27.83316   23 22 03.34   +40 57 04.7          Kusnirak
          27.83366   23 22 03.29   +40 57 08.8          Toth
          27.83745   23 22 02.88   +40 57 32.8   15.1   Busch
          27.84500   23 22 02.14   +40 58 23.9   15.1   Apitzsch
          27.84763   23 22 01.89   +40 58 39.7   12.0   Sanchez
          27.86705   23 21 59.76   +41 00 51.9   15.2   Payer

S. Hoenig (Dossenheim, Germany). 0.25-m f/6.3 Schmidt-Cassegrain
  telescope. Coma diameter 2'.
K. Kadota (Ageo, Saitama, Japan). 0.18-m f/5.5 reflector + CCD.
  Comet diffuse; coma diameter 1'.5; tail 1'.8 long in p.a. 213 deg.
M. Griesser (Wiesendangen, Switzerland). 0.40-m f/5.9 hypergraph
  + CCD.
P. Kusnirak (Ondrejov, Czech Republic). 0.65-m f/3.6 reflector + CCD.
  Coma diameter 2'; tail 4' long towards the southwest.
J. Toth (Modra, Slovenia). 0.6-m f/5.5 reflector + CCD.
M. Busch and F. Hormuth (Heppenhiem, Germany). 0.45-m f/4.4 reflector
  + CCD. Coma diameter 30".
R. Apitzsch (Wildberg, Germany). 0.24-m f/10 reflector + CCD.
  Coma diameter 1'; tail 2' long towards the southwest.
S. Sanchez (Mallorca). 0.40-m f/2 Schmidt + CCD. Coma diameter 1';
  tail 3' in p.a. 215 deg.
T. Payer (Dusseldorf, Germany). 0.32-m f/5.7 reflector + CCD.

                      (C) Copyright 2002 CBAT
2002 July 27                   (7939)          Carl W. Hergenrother

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