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IAUC 3875: 1983 SA; SN IN IC 1731

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                                                  Circular No. 3875
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 617-864-5758


1983 SA
     P. Wild, Astronomical Institute, Berne, communicates the
following additional precise positions:

         1983 UT              R.A.    (1950.0)    Decl.

         Oct.  1.89427      22 50 24.55      +14 07 29.4
               2.97153      22 48 56.18      +14 40 39.2
               3.91458      22 47 44.47      +15 08 14.9

     The following orbital elements, by the undersigned, satisfy
the five available positions within 0"3.  The formal errors are
small, and the cometary nature of the orbit seems inescapable,
although e  and  a  may be somewhat smaller than shown here.

           T = 1983 July 26.09 ET
       Peri. = 316.52                    e =   0.7128
       Node  = 350.08   1950.0           a =   4.2000 AU
       Incl. =  30.74                    n =   0.11451
           q =   1.2063 AU               P =   8.61 years

     1983 ET     R.A. (1950.0) Decl.      p        r       m1

     Sept. 3     0 14.42    -16 03.3    0.321    1.309    13.5
           8    23 53.73    - 8 42.6
          13    23 35.35    - 2 03.2    0.359    1.364    13.5
          18    23 19.67    + 3 36.6
          23    23 06.80    + 8 12.9    0.434    1.427    14.2
          28    22 56.61    +11 51.4
     Oct.  3    22 48.91    +14 41.6    0.536    1.496    14.9
           8    22 43.42    +16 53.7
          13    22 39.90    +18 36.6    0.659    1.571    15.6
          18    22 38.09    +19 57.5
          23    22 37.72    +21 02.1    0.796    1.649    16.2
          28    22 38.60    +21 54.6
     Nov.  2    22 40.54    +22 38.2    0.944    1.730    16.7


SUPERNOVA IN IC 1731
     Wild also reports his discovery of a supernova, of  mpg 14, at
R.A. = 1h47m23s74, Decl. = +26deg57'03"9 (equinox 1950.0), 9" east and
10" north of the nucleus of IC 1731.  The discovery was made on Oct. 1
and confirmed on Oct. 3.


1983 October 5                 (3875)              Brian G. Marsden

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