Central Bureau for Astronomical Telegrams

Central Bureau for Astronomical Telegrams -- Image credits

IAUC 4833: 1989 PB

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 4832 SEARCH Read IAUC 4834
IAUC number 

                                                  Circular No. 4833
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Postal Address: Central Bureau for Astronomical Telegrams
Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Telephone 617-495-7244/7440/7444 (for emergency use only)
TWX 710-320-6842 ASTROGRAM CAM     EASYLINK 62794505
MARSDEN or GREEN@CFA.BITNET    MARSDEN or GREEN@CFAPS2.SPAN


1989 PB
     Further precise positions have been reported as follows:

     1989 UT             R.A. (1950) Decl.       Mag.   Observer
     Aug.  1.44844   23 27 02.24   -12 36 43.3          Shoemaker
           2.44670   23 27 55.57   -12 17 26.1            "
           2.47395   23 27 56.59   -12 16 56.2            "
           8.35458   23 33 29.38   - 9 41 18.1          Tatum
           8.39764   23 33 31.36   - 9 39 48.4            "
          12.44028   23 38 11.48   - 6 35 37.0            "
          12.79370   23 38 37.84   - 6 12 33.3   13.7   McNaught
          12.79579   23 38 38.00   - 6 12 25.1   13.7     "
          12.79822   23 38 38.11   - 6 12 16.9            "
          14.57928   23 41 29.16   - 4 03 58.3            "

C. S. Shoemaker, E. M. Shoemaker and H. E. Holt (Palomar).  0.46-m
   Schmidt.  Prediscovery images.  Measurer C. S. Shoemaker.
J. B. Tatum and D. D. Balam (Climenhaga Observatory, University
   of Victoria.  Prediscovery images (Aug. 8).
R. H. McNaught (Siding Spring).  Uppsala Southern Schmidt.  Magnitudes
   visual.  Variations in brightness of up to 2 mag.

     Improved orbital elements from 12 observations Aug. 1-14:

     T = 1989 Oct. 27.3148 ET         Peri. = 121.1081
     e = 0.482688                     Node  = 325.1165  1950.0
     q = 0.550014 AU                  Incl. =   8.8906
       a =  1.063214 AU    n = 0.8990273    P =   1.096 years

     1989 ET      R.A. (1950) Decl.     Delta      r        V
     Aug. 14    23 40.48    - 4 50.5    0.105    1.102    13.5
          15    23 42.18    - 3 28.4
          16    23 44.15    - 1 50.2    0.087    1.087    13.1
          17    23 46.47    + 0 09.3
          18    23 49.28    + 2 37.4    0.070    1.071    12.6
          19    23 52.78    + 5 45.0
          20    23 57.33    + 9 48.6    0.054    1.055    12.1
          21     0 03.52    +15 13.5
          22     0 12.50    +22 37.8    0.039    1.039    11.6


1988 August 14                 (4833)              Brian G. Marsden

Read IAUC 4832 SEARCH Read IAUC 4834

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

Valid HTML 4.01!