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IAUC 3426: SATURN; 1979 VA; SN IN ESO 153-G27

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IAUC number 

                                                  Circular No. 3426
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


SATURN
     A. Dollfus, Observatoire de Paris, reports that a search for
an outer ring of Saturn has been made using a focal coronagraph
with the Pic du Midi reflector.  A faint lineament was suspected on
two plates taken around Nov. 1d04h50m UT.  It extends eastward in
the ring plane from the outer edge of ring A up to 3.40 Saturn
radii, where the image of Saturn II (Enceladus) is located.  Its
yellow magnitude could be estimated as ~ 18 per linear arcsecond.
The line is not seen on the western side of Saturn.


1979 VA
    Further precise positions have been reported as follows:

     1979 UT             R. A. (1950) Decl.       Mag.   Observer
     Nov. 17.21181     1 45 31.02   +24 55 30.5          Giclas
          22.15590     2 14 42.85   +24 06 42.6          Bowell
          23.42936     2 20 44.74   +23 54 39.6   14     Gilmore
          23.44603     2 20 49.14   +23 54 33.6            "
          24.23750     2 24 20.70   +23 45 58.9          Kowal
          24.25833     2 24 25.83   +23 45 47.0            "

H. L. Giclas and E. Bowell (Lowell Observatory, Anderson Mesa Station).
   0.3-m photographic telescope.  Measurer: M. L. Kantz.
A. C. Gilmore and P. M. Kilmartin (Happy Valley, Wellington).  0.2-m
   astrograph.  Long. = -174o45', Lat. = -41o20'.
C. Kowal (Hale Observatories).  l.2-m Schmidt telescope.  Beginning
   and end of trail.  Measurer: S. J. Bus.

     A. W. Harris, Jet Propulsion Laboratory, reports that photoelectric
observations at Table Mountain Observatory on Nov. 16.1 UT
gave V = 13.25 +/- 0.05, B-V = +0.72, U-B = +0.30.  The rotation
period deduced from the small-amplitude (~ 0.05 mag) lightcurve is ~
4 hours.


SUPERNOVA IN ESO 153-G27
     J. Maza, Department of Astronomy, University of Chile, writes
that the offset of the supernova reported on IAUC 3424 is 6" east
(rather than west) and 15" north of the galaxy's nucleus.


1979 November 29               (3426)              Brian G. Marsden

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