Central Bureau for Astronomical Telegrams

Central Bureau for Astronomical Telegrams -- Image credits

IAUC 3654: 1981l; SATURN VII (HYPERION); NOTICE RE Tlgms

The following International Astronomical Union Circular may be linked-to from your own Web pages, but must not otherwise be redistributed (see these notes on the conditions under which circulars are made available on our WWW site).

Read IAUC 3653 SEARCH Read IAUC 3655
IAUC number 

                                                  Circular No. 3654
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 VAISALA 1 (1981l)
     J. Gibson reports that he has recovered this comet on
exposures with the 1.2-m Schmidt telescope at Palomar as follows:

     1981 UT             R. A. (1950) Decl.         m1
     Dec.  7.47953     7 06 17.07   +11 56 01.9    20.5
          18.335       7 00.15      +12 10.9
          18.397       7 00.10      +12 11.1

The comet is essentially of stellar appearance.  The indicated
correction to the predictions in BAA Handb. for 1981 and MPC 6212
(elements on Nakano Note No. 396) is Delta-T = -0.03 to -0.04 day.


SATURN VII (HYPERION)
     Observations obtained at the European Southern Observatory
under the direction of H. Debehogne:

     1981 UT             R. A. (1950) Decl.
     Mar.  1.25214    12 33 24.18   - 0 44 05.6
           1.25906    12 33 24.06   - 0 44 04.9
           1.26599    12 33 23.95   - 0 44 04.3
           4.34021    12 32 33.88   - 0 39 18.5
           4.34713    12 32 33.74   - 0 39 17.6
           4.35406    12 32 33.62   - 0 39 16.8
           7.29704    12 31 35.10   - 0 34 19.2
           7.30362    12 31 34.97   - 0 34 18.7
           8.34660    12 31 14.44   - 0 32 24.9
           8.35353    12 31 14.32   - 0 32 24.4
          12.38070    12 30 06.13   - 0 24 36.7
          12.38762    12 30 06.01   - 0 24 35.9
          12.39455    12 30 05.89   - 0 24 35.0


NOTICE CONCERNING TELEGRAMS
       It is once again an 'open season' for making changes in the
1ist of subscribers to the Central Bureau's telegram service.
Subscribers who wish to make address changes, category changes, etc.,
are requested to inform us of said changes by 1982 Jan. 31.  We
regret that a charge of $25.00 must be made for address changes and
deletions made outside these biannual seasons.


1981 December 22               (3654)              Brian G. Marsden

Read IAUC 3653 SEARCH Read IAUC 3655

Our Web policy. Index to the CBAT/MPC/ICQ pages.

Valid HTML 4.01!