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IAUC 3753: 1982i; 1982f; (9); NOTICE TO SUBSCRIBERS

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IAUC number 

                                                  Circular No. 3753
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


PERIODIC COMET HALLEY (1982i)
     J. Baudrand, M. Combes, E. Gerard, J. Guerin, J. Lecacheux,
B. Sicardy, G. Lelievre, J. P. Lemonnier and J. P. Picat provide
the following precise geocentric positions, obtained using the
prime-focus electronographic camera on the Canada-France-Hawaii
telescope.  The Oct. images are marginal (that on Oct. 16 being
from a deep IIIa-F exposure).  In Nov. B = 24.6 +/- 0.4.  Field star
positions are from the 0.9-m Schmidt telescope at Caussols.

          1982 UT              R.A. (1950.0)        Decl.

          Oct. 16.5799       7 11 01.18      + 9 32 57.3
               17.5532       7 10 57.12      + 9 32 00.3
          Nov. 15.5576       7 06 01.03      + 9 09 22.3
               16.4896       7 05 45.77      + 9 08 56.0
               16.5854       7 05 44.27      + 9 08 54.9


PERIODIC COMET CHURYUMOV-GERASIMENKO (1982f)
     Total visual magnitude estimates: Nov. 22.18 UT, 9.5 (C. E.
Spratt, Victoria, BC, 0.20-m reflector); 25.18, 9.9 (Spratt); Dec.
8.21, 9.2 (C. S. Morris, Harvard, MA, 0.25-m reflector).


(9) METIS
     F. Pilcher, Illinois College, communicates several additional
observations (cf. IAUC 3739) that fail to support the suggestion
that this minor planet possesses a satellite.  In addition to his
own observations, which resolved ADS 968 easily, he mentions an
examination at powers of up to 1016 by P. Dombrowski with the 0.5-
m refractor at Van Vleck Observatory on Sept. 15, and numerous
searches by R. Oliver to a resolution limit of 0".6 and magnitude
difference 1.5 with the Lowell Observatory's 0.6-m refractor.


NOTICE TO SUBSCRIBERS
     Subscribers (particularly those in Canada) are requested to
arrange that checks in payment for these Circulars are drawn on
U.S. banks.  Checks should be payable to the Central Bureau for
Astronomical Telegrams (optionally to the Minor Planet Center if
payment is being simultaneously made for Minor Planet Circulars).


1982 December 14               (3753)              Brian G. Marsden

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