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IAUC 3112: 1977m

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                                                  Circular No. 3112
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


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

     1977 UT             R. A. (1950) Decl.        m1    Observer
     Sept. 7.47778    15 28 47.78   +28 34 35.8          Jekabsons
          11.51007    15 36 30.28   +27 16 06.2   10     Seki
          12.88887    15 39 17.81   +26 48 09.0   10.5   Waterfield
          14.14028    15 41 55.10   +26 22 22.9          Bus
          15.13715    15 44 02.58   +26 01 20.0            "
          15.17847    15 44 07.65   +26 00 27.1          Giclas
          18.13681    15 50 43.34   +24 55 53.8            "

P. Jekabsons (Perth Observatory, Bickley).  33-cm astrograph.
T. Seki (Kochi Observatory, Geisei Station).
R. L. Waterfield (Woolston Obs.).  Fanlike elongation to northeast.
S. J. Bus and T. Lauer (Palomar Mountain Observatory).  46-cm
   Schmidt telescope.  Measurers: Bus and J. Gibson.
H. L. Giclas (Lowell Observatory).  Measurer: M. L. Kantz.

     The following improved parabolic elements, by the undersigned,
satisfy 11 observations Sept. 6-18 within 2".5:

       T = 1977 Nov. 10.5814 ET  Peri. = 163.4750
                                 Node  = 181.8071  1950.0
       q = 0.990874 AU           Incl. =  48.7221

     1977 ET     R. A. (1950) Decl.     Delta     r      m1
     Oct.  4    16 33.27    +18 02.6    1.249   1.179    7.7
           9    16 49.41    +15 22.1
          14    17 07.00    +12 23.6    1.144   1.098    7.2
          19    17 26.08    + 9 05.4
          24    17 46.69    + 5 26.6    1.051   1.036    6.8
          29    18 08.86    + 1 28.0
     Nov.  3    18 32.55    - 2 47.4    0.984   0.999    6.5
           8    18 57.70    - 7 14.0
          13    19 24.18    -11 43.3    0.954   0.992    6.4
          18    19 51.76    -16 05.3
          23    20 20.15    -20 09.5    0.969   1.014    6.5
          28    20 48.99    -23 47.4
     Dec.  3    21 17.89    -26 53.1    1.025   1.063    6.8

                   m1 = 6.5 + 5 log Delta + 10 log r


1977 September 23              (3112)              Brian G. Marsden

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