Central Bureau for Astronomical Telegrams

Central Bureau for Astronomical Telegrams -- Image credits

IAUC 4779: 1989 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 4778 SEARCH Read IAUC 4780
IAUC number 

                                                  Circular No. 4779
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 JA
     Further precise positions have been reported as follows:

     1989 UT             R.A. (1950) Decl.       Mag.   Observer
     Apr.  6.37153   14 46 43.42   +18 07 51.9   17.5   Helin
           6.39462   14 46 42.80   +18 08 08.4            "
           8.32917   14 45 51.03   +18 30 53.8   17.2     "
           8.35816   14 45 49.94   +18 31 13.7            "
     May   7.17095   13 52 51.55   +21 06 26.1          Shao
           8.11974   13 49 13.04   +20 56 56.0          McCrosky
           8.25608   13 48 40.35   +20 55 28.8   15.7   Holt
           8.28507   13 48 33.00   +20 55 08.1            "
           9.15631   13 45 00.34   +20 44 16.8          Shao

E. Helin and B. Roman (Palomar).  0.46-m Schmidt.  Prediscovery images.
C.-Y. Shao and R. E. McCrosky (Oak Ridge).  1.5-m reflector.
H. E. Holt (Palomar).  0.46-m Schmidt.  Measurer B. Roman.

     Improved orbital elements from 15 observations Apr. 6-May 9:

     T = 1989 July  8.2953 ET         Peri. = 231.6311
     e = 0.484907                     Node  =  61.0526  1950.0
     q = 0.912582 AU                  Incl. =  15.2655
       a =  1.771684 AU    n = 0.4179502    P =   2.358 years

     1989 ET      R.A. (1950) Decl.     Delta      r        V
     May  10    13 41.42    +20 32.5    0.189    1.155    14.5
          12    13 32.25    +19 56.5
          14    13 22.05    +19 08.9    0.165    1.129    14.3
          16    13 10.67    +18 07.4
          18    12 57.96    +16 49.4    0.143    1.103    14.1
          20    12 43.71    +15 11.8
          22    12 27.71    +13 11.0    0.123    1.078    13.9
          24    12 09.72    +10 43.3
          26    11 49.51    + 7 45.2    0.106    1.054    13.8
          28    11 26.91    + 4 15.0
          30    11 01.87    + 0 13.7    0.094    1.032    13.9
     June  1    10 34.49    - 4 12.4
           3    10 05.18    - 8 51.0    0.089    1.011    14.2


1989 May 11                    (4779)              Brian G. Marsden

Read IAUC 4778 SEARCH Read IAUC 4780

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

Valid HTML 4.01!