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IAUC 3109: 1977l; 1977m

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                                                  Circular No. 3109
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Postal Address: Central Bureau for Astronomical Telegrams
Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Cable Address: SATELLITES, NEWYORK     Telex: 921428
Telephone: (617) 864-5758


PERIODIC COMET CHERNYKH (1977l)
     Further precise positions have been reported as follows:

     1977 UT             R. A. (1950) Decl.       m1     Observer
     Aug. 19.02759     0 20 27.18   - 3 07 36.9   14     Chernykh
          20.01212     0 20 23.52   - 3 10 58.0   14       "
          22.03072     0 20 13.20   - 3 18 12.6   14       "
          23.01305     0 20 06.66   - 3 21 55.8   14       "
     Sept. 4.71111     0 17 09.62   - 4 18 23.5          Seki
           5.58620     0 16 52.20   - 4 22 47.5   13     Urata
           5.59896     0 16 51.90   - 4 22 50.8            "
           6.60088     0 16 30.53   - 4 27 54.5   13       "

N. S. Chernykh (Crimean Astrophysical Observatory).  Reduced at
   I.T.A. Communicated by G. R. Kastel' and E. P. Aksenov.
T. Seki (Kochi Observatory, Geisei Station).
T. Urata (JCPM Yakiimo Station). From Nihondaira Obs. Circ. No. 883.

     J. Bortle, Brooks Observatory, communicates the following
total visual magnitude estimates and coma diameters (32-cm reflector):
Sept. 11.16 UT, 12.5, 0'.7; 12.14, 12.7, 0'.7.


COMET KOHLER (1977m)
     The following precise positions have been reported:

     1977 UT             R. A. (1950) Decl.       m1     Observer
     Sept. 7.78093    15 29 21.50   +28 28 42.6   11     Chernykh
           7.79134    15 29 22.35   +28 28 29.9             "
           9.88418    15 33 18.32   +27 48 14.8 10-11    Waterfield

N. S. Chernykh (Crimean Astrophysical Observatory).  Communicated
   by G. R. Kastel', Yu. V. Batrakov and E. P. Aksenov.
R. L. Waterfield (Woolston Obs.).  Correction to IAUC 3105.  Time
   still somewhat uncertain.  Plate actually taken by M. J. Hendrie.
   Comet diffuse with but little condensation at the center.

     Total visual magnitude estimates: Sept. 12.07 UT, 9.6 (S.
O'Meara, Harvard Observatory, 23-cm refractor; correction to IAUC
3107); 13.03, 9.7 (C. S. Morris, Harvard Obs., 23-cm refractor).


1977 September 16              (3109)              Brian G. Marsden

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