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IAUC 3522: 1980o; 1980 RG1; Cyg X-3; Corrs

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IAUC number 

                                                  Circular No. 3522
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Postal Address: Central Bureau for Astronomical Telegrams
Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
TWX 710-320-6842 ASTROGRAM CAM     Telephone 617-864-5758


COMET RUSSELL (1980o)
     Kenneth S. Russell, U.K. Schmidt Telescope Unit, reports that
he has discovered another comet on an exposure by J. Barrow on
Sept. 28.  The image, trailed on the 90-min exposure the positions
of the ends of which are given below, is sharply defined, with an
extended diffuse patch surrounding it.  The Oct. 2 confirmation
plate was taken by A. Savage.

     1980 UT             R. A. (1950) Decl.        m1
     Sept.28.39727    21 44 40.85   -32 07 31.5    17
          28.45977    21 44 40.86   -32 07 02.8
     Oct.  2.41597    21 44 59.51   -31 30 05.6


1980 RG1
     Charles T. Kowal, California Institute of Technology, reports
the discovery of an asteroidal object moving direct at opposition.
The observations were made with the l.2-m Palomar Schmidt.

     1980 UT             R. A. (1950) Decl.        mpg
     Sept.13.40035     0 03 32.91   +14 49 08.8    15.5
          14.42951     0 03 54.70   +14 47 06.4    15.5

Computations by the undersigned suggest that the object is of Amor
type, a very rough ephemeris being: Oct. 8.0, R.A. = 0h11m, Decl. = +11o.9
(equinox 1950.0); Oct. 18.0, 0h15m, +10o.2; Oct. 28.0, 0h23m, +8o.7.


CYGNUS X-3
     N. V. Steshenko, Crimean Astrophysical Observatory, reports
that V. A. Efanov, I. G. Moiseev and N. S. Nesterov have registered
a radio burst from Cyg X-3 during observations at 13.5 mm with the
22-m radio telescope.  On Sept. 25.749 UT the radio flux was less
than 0.75 Jy.  On Sept. 26.624 and 26.888 UT it reached 8.72 +/- 0.23
and 10.11 +/- 0.54 Jy, respectively.


CORRIGENDA
IAUC 3515, 1978 P 1, line 7: for  0.0004 kg m**-3  read  400 kg m**-3.
IAUC 3521, SS 433, line 10: for  is 4.9 kpc is  read  is 4.9 kpc if.


1980 October 3                 (3522)              Brian G. Marsden

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