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IAUC 6112: 1994t

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                                                  Circular No. 6112
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)
Phone 617-495-7244/7440/7444     TWX 710-320-6842 ASTROGRAM CAM
MARSDEN@CFA.HARVARD.EDU or GREEN@CFA.HARVARD.EDU (science)


PERIODIC COMET CLARK (1994t)
     S. Nakano, Sumoto, Japan, reports the recovery of this comet
by A. Nakamura (Kuma Kogen, 0.60-m f/6.0 Ritchey-Chretien + CCD):

     1994 UT             R.A. (2000) Decl.        m1
     Dec.  5.85747   13 39 25.93   - 3 30 11.6   17.5
           5.86123   13 39 26.30   - 3 30 13.9
           5.86649   13 39 26.96   - 3 30 17.9
           6.84688   13 41 17.86   - 3 41 24.7   17.6
           6.85660   13 41 18.99   - 3 41 31.4

Nakamura notes the comet as being diffuse with central condensation,
with coma diameter 0'.35; on Dec. 5, there was a hint of tail in
p.a. 250 deg.
     The following orbital elements by Nakano are from 35
observations, 1984-1994 (mean residual 0".92); nongravitational
parameters A1 = -0.31 +/- 0.73, A2 = -0.2796 +/- 0.0136.

                    Epoch = 1995 June 12.0 TT
     T = 1995 May  31.10630 TT        Peri. = 208.85468
     e = 0.5020395                    Node  =  59.72627 2000.0
     q = 1.5524958 AU                 Incl. =   9.50461
       a =  3.1177089 AU   n = 0.17904027   P =   5.505 years

1994/95     R. A. (2000) Decl.   Delta     r    Elong. Phase    m1
Dec.  4    13 35.93   - 3 09.0   2.760   2.234   48.6   19.3   17.9
     14    13 54.94   - 5 02.0   2.613   2.178   53.6   21.3   17.7
     24    14 14.48   - 6 53.2   2.464   2.122   58.5   23.3   17.4
Jan.  3    14 34.58   - 8 41.8   2.313   2.067   63.3   25.1   17.1
     13    14 55.24   -10 27.1   2.162   2.013   68.0   26.9   16.7
     23    15 16.50   -12 08.6   2.013   1.960   72.7   28.6   16.4
Feb.  2    15 38.36   -13 45.8   1.867   1.908   77.2   30.2   16.1
     12    16 00.81   -15 18.3   1.724   1.859   81.7   31.7   15.7
     22    16 23.84   -16 46.0   1.587   1.811   86.0   33.0   15.4
Mar.  4    16 47.40   -18 09.2   1.457   1.766   90.3   34.2   15.0
     14    17 11.39   -19 28.3   1.333   1.724   94.5   35.1   14.7
     24    17 35.73   -20 44.4   1.218   1.686   98.6   35.8   14.3
Apr.  3    18 00.22   -21 58.9   1.111   1.651  102.8   36.2   14.0
     13    18 24.62   -23 14.0   1.014   1.621  107.0   36.2   13.7


1994 December 7                (6112)            Daniel W. E. Green

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