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IAUC 4940: 1989W; 1989a1

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                                                  Circular No. 4940
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Postal Address: Central Bureau for Astronomical Telegrams
Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Telephone 617-495-7244/7440/7444 (for emergency use only)
TWX 710-320-6842 ASTROGRAM CAM     EASYLINK 62794505
MARSDEN or GREEN@CFA.BITNET    MARSDEN or GREEN@CFAPS2.SPAN


SUPERNOVA 1989W IN ANONYMOUS GALAXY
     C. Pollas, Observatoire de la Cote d'Azur, reports his discovery
on plates taken by A. Maury and himself of a possible supernova 4" east
and 8" north of the nucleus of an anonymous galaxy at R.A. =
13h42m46.3, Decl. = +30d02'53" (equinox 1950.0).  The object was at R =
18 on 1989 Dec. 30.24 and 1990 Jan. 3.22 UT.


COMET AARSETH-BREWINGTON (1989a1)
     Improved parabolic orbital elements from MPC 15672:

     T = 1989 Dec. 27.890 ET          Peri. = 205.261
                                      Node  = 345.226   1950.0
     q = 0.30071 AU                   Incl. =  88.380

     1990 ET      R.A. (1950) Decl.     Delta      r       m1
     Jan. 13    20 35.54    -44 24.6    1.239    0.558     5.9
          15    20 53.69    -43 25.6
          17    21 09.54    -42 18.6    1.347    0.646     6.8
          19    21 23.41    -41 07.4
          21    21 35.61    -39 54.7    1.458    0.734     7.5
          23    21 46.40    -38 42.0
          25    21 56.02    -37 30.4    1.569    0.821     8.1
          27    22 04.66    -36 20.7
          29    22 12.46    -35 13.1    1.678    0.905     8.7
          31    22 19.55    -34 08.0
     Feb.  2    22 26.05    -33 05.3    1.785    0.988     9.2
           4    22 32.02    -32 05.2
           6    22 37.56    -31 07.4    1.889    1.069     9.7
           8    22 42.71    -30 12.0

     G. Mengoli and F. Muzzi, Bologna, Italy, report tail lengths from
an exposure with a 0.15-m Schmidt camera (+ Kodak TP 4415 film) on 1989
Dec. 3.197 UT: 1.58 deg in p.a. 357 deg, faint 0.06-deg antitail in
p.a. 177 deg.  Total visual magnitudes: Dec. 24.55, 3.2: (A.
Hale, Las Cruces, NM, 10 x 50 binoculars); 27.75, 2.3 (G. Garradd,
Tamworth, N.S.W., 10 x 50 binoculars; 1-deg broad tail in p.a. 260 deg);
29.74, 3.5 (R. H. McNaught, Siding Spring Observatory, naked eye); 1990
Jan. 3.84, 3.6 (A. Pearce, Scarborough, Western Australia, 20 x 80
binoculars; 0.5-deg tail in p.a. 222 deg); 5.84, 4.0 (Pearce).


1990 January 12                (4940)              Brian G. Marsden

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