Central Bureau for Astronomical Telegrams

Central Bureau for Astronomical Telegrams -- Image credits

IAUC 5219: 1991 FB; 1991l

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 5218  SEARCH Read IAUC 5220
IAUC number


                                                  Circular No. 5219
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


1991 FB
     R. H. McNaught, University of Adeliade, reports his discovery
of a fast-moving asteroidal object on U.K. Schmidt plates taken by
S. M. Hughes on Mar. 18 and 19.  The Mar. 20 and 21 positions below
were obtained from films taken by McNaught with the Uppsala Southern
Schmidt:

     1991 UT             R.A. (1950) Decl.        V
     Mar. 18.69428   13 59 42.73   + 0 29 24.7   17.5
          18.74289   13 59 50.38   + 0 27 35.9
          19.68878   14 02 36.01   - 0 09 23.6
          19.70962   14 02 39.37   - 0 10 12.5
          20.69178   14 05 37.43   - 0 50 54.5
          21.67258   14 08 42.00   - 1 33 58.3
          21.72812   14 08 51.89   - 1 36 28.3

     Preliminary orbital elements from the above observations:

     T = 1991 May   9.023 ET          Peri. = 217.619
     e = 0.54461                      Node  =  18.417   1950.0
     q = 1.03951 AU                   Incl. =   8.969
       a =  2.28270 AU     n = 0.285779     P =   3.45 years

     1991 ET      R.A. (1950) Decl.     Delta      r       V
     Mar. 15    13 49.80    + 2 35.1    0.276    1.234    17.9
          20    14 03.53    - 0 22.3
          25    14 20.12    - 4 20.7    0.205    1.176    17.1
          30    14 41.06    - 9 41.4
     Apr.  4    15 08.55    -16 45.4    0.151    1.125    16.5
           9    15 45.82    -25 35.6
          14    16 36.80    -35 20.7    0.123    1.085    16.4
          19    17 43.44    -43 55.6
          24    18 59.75    -49 12.4    0.130    1.056    16.9


COMET HELIN-LAWRENCE (1991l)
     Total visual magnitude estimate by A. Hale, Las Cruces, NM
(0.41-m reflector):  Mar. 21.45 UT, 13.6.


1991 March 21                  (5219)             Daniel W. E. Green

Read IAUC 5218  SEARCH Read IAUC 5220


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


Valid HTML 4.01!