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IAUC 3508: Occn OF SAO 75392 BY (78); 1980k; VY Scl

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IAUC number 

                                                  Circular No. 3508
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


OCCULTATION OF SAO 75392 BY (78) DIANA ON 1980 SEPTEMBER 4
     D. W. Dunham, Silver Spring, Maryland, reports that astrometric
observations by G. E. Taylor, Royal Greenwich Observatory, on
Aug. 23 and by A. Klemola, Lick Observatory, on Aug. 25 revise the
predicted central path of this event as follows:

       UT      Long.   Lat.      UT      Long.   Lat.
     11h11m0   +102o   +20o    11h16m2    +96o   +35o
     11 12.5   +100    +25     11 18.3    +93    +40
     11 14.5   + 98    +30

     The sun will be at the following respective altitudes at the above
times: -15o, -14, -12, -9, -5.  The path should be about 225-240
km wide, with the duration of occultation being ~ 20s (cf. Sky
Telesc. 60, 121).  Further last-minute inforation may become
available from Dunham (telephone 301-589-1545, ext. 358, or 301-585-0989).


COMET CERNIS-PETRAUSKAS (1980k)
     V. Straizys, Vilnius University Observatory, informs us that
the comet was discovered by Kazimeras Cernis and Jovaras Petrauskas
at the Vilnius Observatory's station on Maidanak Mountain,
Uzbekistan.

     The following observations have been reported:

     1981 UT             R. A. (1950) Decl.        Observer
     Aug. 10.075      12 40 35      +31 48.18      Belserene
          17.87257    13 19 12.19   +30 20 24.1    Wild

E. P. Belserene (Maria Mitchell Observatory).  Coma diameter ~0'.8.
P. Wild (Astronomical Institute, Berne, Zimmerwald Station).

     Orbital computations by the undersigned which include the six
accurate positions from Aug. 2-17 reveal similar elements to those
published on IAUC 3504; the ephemeris change is quite small (dDecl. ~ -2').


VY SCULPTORIS
     B. J. M. Hassall and J. H. J. Whelan, Institute of Astronomy,
Cambridge, communicate the following precise position of this object
(equinox 1950.0): R.A. = 23h26m21s.3, Decl. = -30o03'17" (cf. IAUC 3502).


1980 August 29                 (3508)              Daniel W. E. Green

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