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IAUC 5948: 1994c; 1993 (243) 1; 1994C

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                                                  Circular No. 5948
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

     Jean Mueller, Palomar Mountain Observatory, reports her
discovery of a comet in the course of the second Palomar Sky Survey.
Confirmation has been made on films taken by K. Lawrence for E. Helin
in the course of the Palomar Planet-Crossing Asteroid Survey.

     1994 UT             R.A. (2000) Decl.        m1    Observer
     Mar. 10.46528   15 51 06.02   + 2 28 41.6   17     Mueller
          10.50347   15 50 59.06   + 2 29 08.4            "
          11.45538   15 47 57.71   + 2 39 32.7   17.0   Lawrence
          11.48090   15 47 52.20   + 2 39 52.2            "

J. Mueller (Palomar).  1.2-m Oschin Schmidt.  Faint, diffuse nucleus
   with a large, diffuse coma and no visible tail.
K. Lawrence (Palomar).  0.46-m Schmidt.  Diffuse without condensation.

1993 (243) 1
     M. Belton, Solid State Imaging (SSI) Science Team Leader for the
Galileo project; and R. Carlson, Principal Investigator, Near Infrared
Mapping Spectrometer (NIMS), report that a small object has been found
in the close vicinity of (243) Ida.  The object was detected in samples
of SSI and NIMS data taken during Galileo's flyby of Ida in Aug. 1993
and returned to the earth during 1994 Feb. 15-16.  The detections were
in data acquired on 1993 Aug. 29.693 and 29.697 UT (at the spacecraft),
respectively.  At the time, the spacecraft was 537.9 * 10**6 km (3.596 AU)
from the earth and 10 760 km from Ida.  Seen in independent samples of
NIMS and SSI data, the suspected satellite appears to have been roughly
100 km from Ida and about 10 to 20 times smaller.  Further information,
including approximate orbital characteristics, resolved images of the
object, color and near infrared spectra, will be returned from the
spacecraft over the next few months.

     A. Riess, P. Challis and R. Kirshner, Center for Astrophysics,
report that a spectrogram (range 350-910 nm) obtained at the
Multiple Mirror Telescope confirms that this object is a supernova
and suggests that it is of type Ia, 20 days past maximum.  Measurements
from absorption lines of the host galaxy give a redshift of 0.051.

1994 March 12                  (5948)              Brian G. Marsden

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