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IAUC 5071: 1976O; 1990 MF; 1990 OS

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                                                  Circular No. 5071
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 1976O IN ESO 234-G16
     R. H. McNaught, University of Adelaide, reports the discovery
of an apparent supernova of mag about 16 in ESO 234-G16 on a U.K.
Schmidt Telescope (UKST) J survey photograph taken 1976 Aug. 19.5
UT by M. Hartley.  The supernova is located at R.A. = 20h19m44s.72,
Decl. = -50 42'10".1 (equinox 1950.0), offset 6".1 west and 13".7
north of the galaxy nucleus and situated in a spiral arm.  Nothing
is present in the position of SN 1976O on a UKST J plate taken by
Hartley on 1990 July 25, nor on the ESO B survey film taken 1975
July 12.  M. A. Read, Royal Observatory, Edinburgh, notes that
nothing appears to a limit of mag about 21 on UKST J plates taken
1976 May 31 and June 24.


1990 MF
     Extended ephemeris from orbital elements on MPC 16701:

     1990 ET      R.A. (1950) Decl.     Delta      r       V
     Aug. 17     4 58.02    +30 37.2    0.185    0.955    16.8
          27     5 09.20    +28 22.6
     Sept. 6     5 19.72    +26 48.7    0.266    1.004    16.8
          16     5 27.93    +25 34.4
          26     5 32.00    +24 29.8    0.320    1.097    16.8
     Oct.  6     5 30.51    +23 29.1
          16     5 22.42    +22 28.2    0.353    1.214    16.7
          26     5 07.49    +21 22.9
     Nov.  5     4 47.35    +20 11.4    0.393    1.343    16.6
          15     4 25.19    +18 56.7
          25     4 04.86    +17 48.4    0.488    1.474    16.5


1990 OS
     Ephemeris extension to IAUC 5068:

     1990 ET      R.A. (1950) Decl.     Delta      r       V
     Aug. 17     5 34.73    +18 19.4    0.078    0.975    18.8
          22     6 14.67    +20 51.1
          27     6 39.90    +22 00.9    0.136    0.936    20.2
     Sept. 1     6 58.25    +22 35.1
           6     7 13.18    +22 50.1    0.199    0.911    20.5


1990 August 7                  (5071)             Daniel W. E. Green

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