Central Bureau for Astronomical Telegrams

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IAUC 4724: 1989f; 1988aa; 1989A

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                                                  Circular No. 4724
Central Bureau for Astronomical Telegrams
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

     E. M. Shoemaker reports another cometary discovery by Carolyn S.
Shoemaker on exposures with the 0.46-m Schmidt telescope at Palomar:

     1989 UT             R.A. (1950) Decl.       m1
     Jan. 11.39461    9 07 10.99   +48 39 41.3   16
          14.48020    9 06 28.25   +49 19 34.4

The object is diffuse and condensed with a coma that is asymmetric
toward the southwest.

     G. Comte, Observatoire de Marseille, telexes: "During a photometric
survey of ultraviolet-excess galaxies by means of RCA-CCD 3-color
imagery with the Pic-du-Midi 2-m Bernard Lyot telescope, I discovered a
supernova on frames taken on 1988 Dec. 14-15 at R.A. = 0h10m06s.2, Decl.
= -0d18'35" (equinox 1950.0).  The stellar image of the supernova is
extremely red: B = 19.65, R(Cousins) = 17.40, I(Cousins) = 16.40.  It is
projected on to a faint background extended object barely visible on the
POSS blue prints, near (2" west and 18" north of) the Kiso Ultraviolet-
excess Galaxy 0010-003.  It remains marginally possible that the SN
belongs to KUG 0010-003, in which case its projected distance to the
center of the KUG is 11.5 kpc for H = 100 km s-1 Mpc-1, the redshift of
the KUG being z = 0.0392 from our unpublished spectroscopic observations.
However, it seems more plausible that the SN is located in the faint
background object, with a possibly fairly large redshift."

     J. Graham, California Insitute of Technology; and S. Perlmutter,
University of California at Berkeley, report that an uncalibrated
spectrum (range 300-700 nm) taken on Jan. 24 by P. Charles at the Isaac
Newton Telescope shows that this object appears to be a type Ia
supernova within a week of maximum light.  The spectrum shows P-Cyg
profiles due to Si II, S II, Mg II and Ca II, with the absorption trough
of Si II 635.5 nm at about 609 nm.

1989 January 27                (4724)              Brian G. Marsden

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