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IAUC 6751: 1997 T1

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                                                 Circular No. 6751
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)
BMARSDEN@CFA.HARVARD.EDU or DGREEN@CFA.HARVARD.EDU (science)
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Phone 617-495-7244/7440/7444 (for emergency use only)


COMET 1997 T1
     S. Nakano, Sumoto, Japan, reports the visual discovery of a
comet by Syogo Utsunomiya on Oct. 3.  Though Utsunomiya saw no tail,
most of the CCD astrometrists below report a tail 4'-12' long in
p.a. about 130 deg:

     1997 UT             R.A. (2000) Decl.        m1    Observer
     Oct.  3.559     23 27         +72 42        10.5   Utsunomiya
           5.524     22 40         +71 58        10.5     "
           5.65312   22 37 00.39   +71 53 19.3   10.5   Kobayashi
           5.65903   22 36 52.53   +71 53 05.9          Kojima
           5.66062   22 36 50.40   +71 53 02.3   10.9     "
           5.66134   22 36 49.43   +71 53 00.6          Kushida
           5.66388   22 36 45.79   +71 52 55.3            "
           5.66434   22 36 45.21   +71 52 55.2          Kobayashi
           5.66524   22 36 43.95   +71 52 52.1          Kojima
           5.66736   22 36 41.08   +71 52 48.0          Kushida
           5.67014   22 36 37.19   +71 52 41.6            "
           5.67251   22 36 33.98   +71 52 36.1          Kojima
           5.67279   22 36 33.63   +71 52 36.6          Kobayashi
           5.67292   22 36 33.46   +71 52 35.6          Kushida
           5.69529   22 36 02.55   +71 51 46.8   11.2   Ikari
           5.69924   22 35 57.22   +71 51 38.4            "
           5.70787   22 35 45.34   +71 51 18.3          Kushida
           5.71528   22 35 35.27   +71 51 01.9            "
           5.72014   22 35 28.63   +71 50 51.0            "
           5.76193   22 34 33.59   +71 49 21.2          Galad
           5.76336   22 34 31.80   +71 49 18.1            "
           5.76421   22 34 30.40   +71 49 16.8          Ticha
           5.76461   22 34 29.92   +71 49 15.7   11.2   Galad
           5.76525   22 34 28.96   +71 49 14.6          Ticha
           5.76608   22 34 27.86   +71 49 12.7   11.0     "

S. Utsunomiya (Azamihara, Minami-Oguni cho, Aso-gun, Kumamoto-ken).
  25x150 binoculars.  Coma diameter 2'.
J. Kobayashi (Kumamoto).  Coma diameter 1' with strong condensation.
T. Kojima (Chiyoda).  Coma diameter 1'.7 with strong condensation.
Y. Kushida (Yatsugatake South Base Observatory).
Y. Ikari (Moriyama).
J. Ticha and M. Tichy (Klet).  Coma diameter 3'.5.
A. Galad and A. Pravda (Modra).  Poor reference-star distribution.

                      (C) Copyright 1997 CBAT
1997 October 5                 (6751)            Daniel W. E. Green

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