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IAUC 5066: 1980Q; 1990T; 1989c1

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IAUC number 

                                                  Circular No. 5066
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 1980Q IN ANONYMOUS GALAXY
     R. H. McNaught, University of Adelaide, reports his discovery
of a supernova of mag 19 in the spiral arm of an anonymous galaxy
near NGC 5813 on a pair of plates taken on 1980 Mar. 20.7 UT by
J. A. Dawe with the U.K. Schmidt Telescope.  The image of the supernova
is about one magnitude brighter on the J plate, which was exposed 90
min before the R plate.  The position is R.A. = 14h58m49s.14, Decl. =
+1 57'23.9 (equinox 1950.0; accuracy 0".3 in each coordinate).  Offsets
from the nucleus are 9".7 east, 7".7 south.  No image appears in this
position on an I plate taken by K. S. Russell on 1990 June 29, and it is
not present on the Palomar Sky Survey prints.  In addition, M. A. Read
has found no image of the supernova to mag about 21 on U.K. Schmidt
plates taken on 1979 July 16 and 1983 May 11.


SUPERNOVA 1990T IN ANONYMOUS GALAXY
     M. Phillips, Cerro Tololo Interamerican Observatory; and C.
Gouiffes, European Southern Observatory, note that July 26 observations
(cf. IAUC 5065) of this type Ia supernova (cf. IAUC 5061) indicate that
it is approximately two weeks past maximum.  They measure a radial
velocity of -9010 km/s for the minimum of the Si II 635.5-nm
absorption, and this is consistent with such an age.


COMET AUSTIN (1989c1)
     Continuation to the ephemeris on IAUC 5014:

     1990 ET      R.A. (1950) Decl.     Delta      r       m1
     Aug.  7    15 26.10    -36 43.1
          17    15 33.16    -37 05.9    2.183    2.507    12.7
          27    15 41.73    -37 29.7
     Sept. 6    15 51.42    -37 54.6    2.746    2.786    13.5
          16    16 01.95    -38 20.1
          26    16 13.16    -38 46.1    3.293    3.053    14.2
     Oct.  6    16 24.88    -39 12.2
          16    16 36.99    -39 38.2    3.803    3.310    14.8
          26    16 49.38    -40 03.9
     Nov.  5    17 01.95    -40 29.3    4.259    3.559    15.3
          15    17 14.60    -40 54.1
          25    17 27.26    -41 18.7    4.645    3.801    15.7


1990 July 28                   (5066)              Brian G. Marsden

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