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IAUC 5132: 1989Y; JUPITER; IRAS 18508-7815 AND IRAS 07598+6508; 1990j

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IAUC number 

                                                  Circular No. 5132
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 1989Y IN ESO 287-G4
     R. H. McNaught, University of Adelaide, reports his discovery
of a supernova at R.A. = 21h14m46s.67, Decl. = -46 31'11".8 (
equinox 1950.0), or 0".1 east and 31".1 south of the center of the
galaxy ESO 287-G4.  The following magnitudes were derived by M.
Read, Royal Observatory, Edinburgh:  1989 July 27, R [20; Aug. 3,
U [21; Aug. 9, I [18.5; Aug. 26, R about 16.4, B about 18.9; Sept.
3, R about 17.3, B about 19.8; Sept. 6, I about 16.8; Sept. 24, B
about 19.7; Oct. 9, I about 19.  No image appears on U.K. Schmidt
Telescope J and R plates taken in 1990 June and August to mag
about 20.5.


JUPITER
     R. Baron and T. Owen, Institute for Astronomy, University of
Hawaii, communicate:  "We have performed the first imaging of H3+
in the 4-micron band on Jupiter.  The observations were made on
the NASA Infrared Telescope Facility telescope at about Oct. 7.73
UT.  The images show a region of emission over the north pole
defining an area about 7" across.  A hot spot of emission is also
seen within a few tens of degrees from the south pole; this spot
appears to be concentrated in an area of order 1".  Comparable
observations of Saturn on Aug. 24 do not show any evidence of
emission at the north pole."


IRAS 18508-7815 AND IRAS 07598+6508
     Further to IAUC 5118, S. L. Lipari notes that these two quasars
have positions that are approximately in opposite regions on
the sky, but might possibly be two images of the same quasar, as
predicted by the model of Fang Li Zhi (Fang and Li 1989, Creation
of the Universe, p. 155).


PERIODIC COMET MUELLER 2 (1990j)
     Extension to the ephemeris on IAUC 5110:

     1990 ET      R.A. (1950) Decl.     Delta      r       m1
     Nov. 15     0 27.17    + 5 23.0    1.246    2.078    16.7
          25     0 31.41    + 4 54.2
     Dec.  5     0 38.34    + 4 48.5    1.427    2.087    17.0
          15     0 47.63    + 5 03.8
          25     0 58.97    + 5 37.2    1.649    2.107    17.3


1990 November 8                (5132)             Daniel W. E. Green

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