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IAUC 6191: C/1995 O1

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                                                  Circular No. 6191
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 C/1995 O1 (HALE-BOPP)
     Additional precise positions:

     1995 UT             R.A. (2000) Decl.        m1    Observer
     July 25.84209   18 42 13.68   -32 06 26.9          Vagnozzi
          25.84215   18 42 13.76   -32 06 26.5          Ticha
          25.84487   18 42 13.68   -32 06 26.8            "
          25.84571   18 42 13.65   -32 06 27.0            "
          25.84652   18 42 13.60   -32 06 27.0            "
          25.84733   18 42 13.59   -32 06 27.0            "
          25.85877   18 42 13.14   -32 06 26.1          Vagnozzi
          25.89150   18 42 11.72   -32 06 21.8   12.2   Meyer
          25.89330   18 42 11.56   -32 06 21.7   12.2     "
          25.89447   18 42 11.61   -32 06 21.8   12.2     "
          25.89551   18 42 11.54   -32 06 20.9   12.2     "
          26.37855   18 41 51.14   -32 05 30.5          Garradd
          26.38248   18 41 51.04   -32 05 30.9            "
          26.39447   18 41 50.53   -32 05 29.5            "
          26.50576   18 41 45.74   -32 05 19.4            "

A. Vagnozzi, G. Bernabei, V. Risoldi, E. Gregori, F. Lombardi, and
  D. Paluzzi (Santa Lucia Stroncone).  0.50-m f/2.8 Ritchey-
  Chretien + CCD.
J. Ticha and M. Tichy (Klet).  0.57-m f/5.2 reflector + CCD.
E. Meyer and H. Raab (Linz).  0.3-m f/5.2 Schmidt-Cassegrain + CCD.
G. J. Garradd (Loomberah, N.S.W.).  0.25-m f/4.1 reflector + CCD.

     The following parabolic orbital elements, from 57 observations
July 24-26, are highly uncertain:

     T = 1997 Jan. 26.83 TT           Peri. = 131.06
                                      Node  = 285.82    2000.0
     q = 0.8025 AU                    Incl. =  67.11

1995 TT     R. A. (2000) Decl.   Delta     r    Elong. Phase    m1
July 22    18 44.97   -32 12.4   5.762   6.719  158.8    3.1   10.6
     27    18 41.42   -32 04.5   5.749   6.675  153.8    3.9   10.5
Aug.  1    18 38.00   -31 55.4   5.743   6.631  148.7    4.6   10.5
      6    18 34.76   -31 45.3   5.744   6.586  143.4    5.3   10.5
     11    18 31.73   -31 34.3   5.751   6.542  138.2    5.9   10.5


1995 July 26                   (6191)            Daniel W. E. Green

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