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IAUC 3885: 1983 VA; 1983 VB; GX 1+4; Cyg X-3

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IAUC number 

                                                  Circular No. 3885
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


1983 VA
     J. Davies and S. Green, University of Leicester, report that
the Infrared Astronomy Satellite has detected another fast-moving
object, as shown below.  Optical confirmation by K. S. Russell,
U.K. Schmidt Telescope Unit, shows the object to be asteroidal.

    1983 UT          R.A.  (1950.0)   Decl.     Mag.  Observer

    Nov.  1.41522   22 10.36      -57 33.7            IRAS
          1.48679   22 10.13      -57 33.4              "
          3.43435   22 01 47.32   -57 28 09.6   17    Russell
          3.44824   22 01 44.23   -57 28 07.6           "


1983 VB
     C. T. Kowal reports his discovery of a fast-moving asteroidal
object on exposures with the 1.2-m Schmidt telescope at Palomar:

          1983 UT           R.A. (1950.0) Decl.      Mag.

          Nov.  6.505       7 11.3      +59 55       16
                8.363       6 54.4      +56 03


GX 1+4
     With reference to IAUC 3872, P. A. Whitelock, J. W. Menzies
and M. W. Feast, South African Astronomical Observatory, report
that the strong H-alpha emission last seen on Aug. 7 was very faint or
absent on Nov. 4, indicating a large change in the rate of transfer
of mass.  JHKL photometry on Oct. 13 shows the cool companion
to be unchanged (cf. Glass 1979, M.N. 187, 807).


CYGNUS X-3
     L. A. Molnar, M. J. Reid and J. E. Grindlay, Center for
Astrophysics, report: "A 6-hr VLA observation was made on Sept. 17
and another was made on Sept. 18 at wavelengths of 13, 20, 60 and
200 mm.  Variations in total flux density on both days at the
first three wavelengths are consistent with a periodicity near the
4.8-hr x-ray period.  The flux density at 200 mm is nearly constant.
Further VLA observations will be made from Dec. 3d17h20m
to 4d03h20m UT.  Coordinated observations in the infrared and at
millimeter and decimeter wavelengths would be valuable."


1983 November 9                (3885)              Brian G. Marsden

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