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IAUC 4758: 1989F; 1989j

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IAUC number 

                                                  Circular No. 4758
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 1989F IN ANONYMOUS GALAXY
     P. Wild, Astronomical Institute, Berne University, reports the
discovery by T. Schildknecht on Mar. 7 (confirmed Mar. 12 by Wild)
of a supernova located 25" northeast of the ill-defined center of an
anonymous galaxy.  The supernova, at mag 16.5, is at R.A. =
12h55m50.37, Decl. = +3 04'06.6 (equinox 1950.0).


PERIODIC COMET SHOEMAKER-HOLT 2 (1989j)
     The following further positions have been reported:

     1989 UT             R.A. (1950) Decl.        m1    Observer
     Mar.  4.88889   10 48 27.38   +31 35 11.9    14    Wild
          12.62301   10 43 12.65   +32 06 20.4    15    McNaught

P. Wild (Astronomical Institute, Berne University).  Prediscovery
   image; exhibits 1' fanned tail.
R. H. McNaught and D. Olsson-Steel (Siding Spring).  Uppsala Schmidt
   telescope.  Comet image diffuse with core, possibly trailed in p.a.
   10 deg.

     The following orbital elements by B. G. Marsden, Center for
Astrophysics, are from 15 observations (Mar. 4-12), and suggest an
approach to Jupiter (about 0.60 AU) in 1984:

     T = 1988 Sept. 4.328 ET          Peri. =  14.669
     e = 0.31076                      Node  =  98.064   1950.0
     q = 2.70268 AU                   Incl. =  17.429
       a =  3.92124 AU     n = 0.126931     P =   7.76 years

     1989 ET      R.A. (1950) Decl.     Delta      r       m1
     Mar. 15    10 41.72    +32 12.7    2.028    2.916    13.7
          20    10 38.83    +32 21.3
          25    10 36.35    +32 23.6    2.110    2.936    13.8
          30    10 34.35    +32 19.8
     Apr.  4    10 32.87    +32 10.5    2.212    2.958    13.9
           9    10 31.94    +31 55.9
          14    10 31.58    +31 36.7    2.330    2.980    14.1


1989 March 15                  (4758)             Daniel W. E. Green

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