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IAUC 4136: 1985p

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                                                  Circular No. 4136
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Postal Address: Central Bureau for Astronomical Telegrams
Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
TWX 710-320-6842 ASTROGRAM CAM    Telephone 617-495-7244/7440/7444


PERIODIC COMET CIFFREO (1985p)
     The following precise positions have been reported:

   1985 UT           R.A.  (1950.0)   Decl.    m1    Observers
   Nov.  8.80729    4 32 32.16   +23 36 39.0         Koishikawa
         9.93045    4 32 05.48   +23 55 29.4   13    Chernykh
        10.96352    4 31 38.36   +24 12 43.1   13    Karachkina
        11.61174    4 31 20.47   +24 23 30.9   12    Watanabe
        11.66132    4 31 18.85   +24 24 24.6            "
        11.70313    4 31 17.42   +24 25 12.4   12    Koishikawa
        11.73958    4 31 16.16   +24 25 43.1            "
        12.66042    4 30 49.03   +24 41 06.9            "
        12.71250    4 30 47.19   +24 41 57.2            "
        12.87895    4 30 42.78   +24 44 41.6   13    Chernykh
        12.95418    4 30 40.14   +24 45 57.9   13       "
        12.98924    4 30 38.85   +24 46 33.5   12    Buczynski
        13.39521    4 30 26.17   +24 53 15.9         Balam
        13.67292    4 30 16.92   +24 57 55.4         Koishikawa
        13.72292    4 30 15.08   +24 58 44.8            "
        14.25939    4 29 57.57   +25 07 39.8         Schwartz
        14.34757    4 29 54.83   +25 09 06.4         Tatum
        15.12847    4 29 27.52   +25 22 02.5   11    Landgraf
        15.13508    4 29 27.06   +25 22 07.7            "

D. D. Balam and J. B. Tatum (Victoria).  Measured by Balam.
D. G. Buczynski and J. D. Greenwood (Condor Brow), 0.47-m refl.
   Possible tail 2' in p.a. 190.  Communicated by P. Birtwhistle.
N. S. Chernykh, L. G. Karachkina, and L. I. Chernykh (Crimea -
   Nauchnij).
M. Koishikawa (Sendai Obs., Ayashi Sta.), 0.20-m reflector, except
   on Nov. 8 when a 300-mm-focal-length lens was used (and comet
   appeared at edge of plate).  Communicated by S. Nakano.
W. Landgraf and R. Riemann (Mainz), 0.2-m refl.  Star-like central
   condensation of mag 13; tail or asymmetric coma 1' to east.
G. Schwartz (Oak Ridge Observatory).  Measured by C.-Y. Shao.
   Diffuse with slight central condensation.
K. Watanabe (Sapporo Science Center), 0.6-m refl.  Comm. by Nakano.

     Total visual magnitude estimates:  Nov. 14.85 UT, 11.5 (J.-C.
Merlin, Le Creusot, France, 0.40-m refl.); 15.31, 13.3 (A. Hale,
near Mt. Wilson, CA, 0.20-m refl.); 17.38, 11.5 (C. Morris, near
Mt. Wilson, CA, 0.25-m reflector; coma diameter 2.4').


1985 November 18               (4136)            Daniel W. E. Green

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