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IAUC 3994: 1983 TB; SN IN NGC 7184?

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IAUC number 

                                                  Circular No. 3994
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


1983 TB
     J. Gibson reports his recovery of this object (the Geminid
parent) with the 1.2-m Schmidt telescope at Palomar:

         1984 UT              R.A.   (1950.0)    Decl.

         Sept. 5.45627       5 44 39.85      +33 30 30.3
               6.43752       5 45 53.55      +33 32 38.0

     The following improved orbital elements, by the undersigned,
satisfy 26 observations 1983 Oct. 12-1984 Sept. 6 with a mean
residual of 1"2.  Full perturbations were taken into account.

         T = 1985 Feb. 5.2425 ET     Epoch = 1984 Oct. 27.0 ET
     Peri. = 321.6755                    e =   0.890215
     Node  = 265.0425   1950.0           a =   1.271298 AU
     Incl. =  22.0314                    n =   0.6875955
         q =   0.139570 AU               P =   1.433 years

     1984 ET     R.A. (1950.0) Decl.      p        r      Mag.
     Sept.17     5 58.53    +33 56.0    1.898    2.056    19.6
          27     6 09.23    +34 19.8
     Oct.  7     6 18.20    +34 47.4    1.486    1.922    19.0
          17     6 24.75    +35 21.5
          27     6 27.67    +36 05.9    1.073    1.761    18.1
     Nov.  6     6 24.84    +37 05.0

          16     6 12.25    +38 21.9    0.682    1.566    16.7
          21     5 59.87    +39 05.3
          26     5 41.18    +39 46.4    0.507    1.455    15.8
     Dec.  1     5 13.52    +40 11.5
           6     4 33.56    +39 49.5    0.359    1.331    14.7


SUPERNOVA IN NGC 7184?
     J. B. Tatum informs us that exposures at the University of
Victoria on July 29 and by J. Newton in Victoria on Sept. 1 show
an object that appears to correspond to the supernova reported on
IAUC 3962.  There is a foreground star, however, at the position on
the Palomar Sky Survey prints.  Certainly, the star on both the O
and E Survey prints was much fainter than the current object, so
there would seem to be a good chance it is a foreground variable.


1984 September 26              (3994)              Brian G. Marsden

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