Central Bureau for Astronomical Telegrams

Central Bureau for Astronomical Telegrams -- Image credits

IAUC 4079: 1985f; 1985 JA

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 4078 SEARCH Read IAUC 4080
IAUC number 

                                                  Circular No. 4079
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 617-495-7244/7440/7444


COMET HARTLEY (1985f)
     M. Hartley, U.K. Schmidt Telescope Unit, communicates the
following precise positions:

         1985 UT              R.A.   (1950.0)    Decl.

         June 13.38141      11 45 24.29      + 4 37 47.2
              13.46175      11 45 31.64      + 4 34 49.8
              13.47911      11 45 32.87      + 4 34 18.2
              21.35870      11 57 37.52      + 0 05 01.2
              21.37606      11 57 38.94      + 0 04 31.5


1985 JA
     The following precise positions have been reported:

     1985 UT            R.A.   (1950.0)   Decl.     Observer

     May  19.37616    15 07 44.83    - 8 40 15.0    Helin
          21.13239    15 06 07.41    - 6 10 23.1    McCrosky
          23.20750    15 04 24.37    - 3 27 32.7      "
          23.38811    15 04 17.03    - 3 13 34.5    Gilmore
          23.41554    15 04 15.70    - 3 11 35.1      "
          24.50109    15 03 28.25    - 1 53 15.1      "
          24.52042    15 03 27.30    - 1 51 52.4      "
     June  7.30067    14 58 38.82    + 9 33 49.3    Gibson
           7.30428    14 58 38.79    + 9 33 56.4      "
           8.30694    14 58 37.24    +10 05 51.5      "
           8.31250    14 58 37.21    +10 06 01.8      "

E. Helin, S. Singer-Brewster and D. Schneeberger (Palomar
   Observatory). 0.46-m Schmidt telescope
R. E. McCrosky, C.-Y. Shao and G. Schwartz (Oak Ridge Observatory).
A. C. Gilmore (Mt. John Observatory).  Measurer: P. M. Kilmartin.
J. Gibson (Palomar Observatory).  1.6-m reflector and CCD.

     The following improved orbital elements have been determined
by the undersigned from 23 observations May 11-June 8:

         T = 1985 Feb. 18.2268 ET
     Peri. = 288.7669                    e =   0.319917
     Node  = 232.0121   1950.0           a =   1.642850 AU
     Incl. =  36.7249                    n =   0.4680662
         q =   1.117275 AU               P =   2.106 years


1985 June 25                   (4079)              Brian G. Marsden

Read IAUC 4078 SEARCH Read IAUC 4080

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

Valid HTML 4.01!