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IAUC 3867: 1983q; 1983r; 1983s; Poss. SN IN NGC 7418

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IAUC number 

                                                  Circular No. 3867
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


PERIODIC COMET AREND (1983q)
     J. Gibson reports his recovery of this comet on exposures
with the 1.2-m Schmidt telescope at Palomar as follows:

     1983 UT            R.A.    (1950.0)     Decl.      m2

     Sept.16.48892      8 18 06.19     +36 39 35.4     20.5
          17.49100      8 20 23.80     +36 35 46.2

The Sept. 16 position is uncertain because of a poor configuration
of reference stars and irregular star trails.  The comet is well
condensed and has a hint of tail 15" long in p.a. 285.  The position
is close to the prediction on MPC 7668 (elements MPC 7659).


PERIODIC COMET HARRINGTON-ABELL (1983r)
     Gibson also reports the recovery of this comet:

     1983 UT            R.A.    (1950.0)     Decl.      m2

     Sept.17.46600      7 22 37.58     +31 17 07.2     20.5
          18.47015      7 25 21.32     +31 13 08.4

The object, essentially of stellar appearance, is in close agree­
ment with the prediction on MPC 7668 (elements MPC 7659).


PERIODIC COMET WILD 2 (1983s)
     Gibson also reports a single observation of this comet, in
very close agreement with the prediction on MPC 7844 (elements MPC
7658).  The comet has a short tail.

      1983 UT            R.A.    (1950.0)     Decl.     m2

      Sept.18.43751      4 52 30.00     +18 54 48.4     20


POSSIBLE SUPERNOVA IN NGC 7418
     J. Maza, Department of Astronomy, University of Chile, telexes
that L. E. Gonzalez has discovered at Cerro El Roble a possible
supernova 11" west and 52" south of the nucleus of the Sc
galaxy NGC 7418 (R.A. = 22h53m8, Decl. = -37deg18', equinox 1950.0).
On Sept. 3 the object was at mpg = 15.5.


1983 September 23              (3867)              Brian G. Marsden

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