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IAUC 5772: 1993g; 1989ab, 1989ac

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                                                  Circular No. 5772
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@CFA or GREEN@CFA (.SPAN, .BITNET or .HARVARD.EDU)


PERIODIC COMET REINMUTH 2 (1993g)
     J. V. Scotti, Lunar and Planetary Laboratory, reports his
recovery of this comet with the 0.9-m Spacewatch telescope at Kitt
Peak:

     1993 UT             R.A. (2000) Decl.        m1
     Feb. 26.45957   15 07 59.67   -25 33 44.7   21.9
          26.48942   15 08 00.14   -25 33 50.1   22.0
          26.51786   15 08 00.26   -25 33 56.0   21.7
     Apr. 21.39013   14 52 12.02   -26 03 41.1
          21.39985   14 52 11.63   -26 03 39.5   21.7
          21.41247   14 52 10.94   -26 03 37.7   21.7
          22.36974   14 51 26.83   -26 01 21.4   20.8
          22.37880   14 51 26.49   -26 01 20.8   21.5
          22.39174   14 51 25.73   -26 01 18.7   21.3
          22.40375   14 51 25.24   -26 01 16.2   22.1

The images were right at the telescope limit in good seeing on Feb.
26.  The comet was rather low on Apr. 21, and there was no convincing
diffuseness beyond the poor seeing, although the images seemed
softer than those of objects of similar brightness nearby.  The
position is almost precisely in accordance with the prediction on MPC
18258 (ephemeris on MPC 21812).


SUPERNOVAE 1989ab AND 1989ac
     J. Mueller reports her discovery of two apparent supernovae on
plates taken during the course of the second Palomar Sky Survey
with the 1.2-m Oschin Schmidt Telescope.  SN 1989ab was found in an
anonymous galaxy whose nucleus is located at R.A. = 18h36m45s.06,
Decl. = +32 54'55".5 (equinox 1950.0); the supernova is located 13"
west and 11" south of the nucleus and appears at mag about 18 on
the discovery plate, which was taken 1989 July 6 by C. Brewer and
Mueller.  SN 1989ab was also found on a survey plate taken by
Brewer, Mueller, and J. D. Mendenhall on 1989 June 30, and it does
not appear on original Palomar Sky Survey prints or on a survey J
plate taken by Brewer and Mendenhall on 1991 July 15.  SN 1989ac is
located 20" west and 6".7 south of the nucleus of UGC 1867 (R.A. =
2h22m.0, Decl. = +45 15', equinox 1950.0); the supernova appeared
at blue mag about 17.5 on the discovery plate, which was taken 1989
Aug. 31 by Mueller.  SN 1989ac was confirmed on a survey plate taken
1989 Sept. 4 by Mendenhall and Mueller, and it does not appear
on original Sky Survey prints.


1993 April 22                  (5772)            Daniel W. E. Green

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