Central Bureau for Astronomical Telegrams

Central Bureau for Astronomical Telegrams -- Image credits

IAUC 5314: 1991 OA; 1989h1

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 5313 SEARCH Read IAUC 5315
IAUC number 

                                                  Circular No. 5314
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 OA
     E. L. G. Bowell, Lowell Observatory, reports the discovery by
H. E. Holt of a fast-moving asteroidal object on films taken with
the Palomar 0.46-m Schmidt telescope by Holt, T. M. King, C. M.
Olmstead, and C. E. Petry.  The following measurements are by B. A.
Skiff:

     1991 UT             R.A. (1950) Decl.       Mag.
     July 16.35799   21 06 26.20   -32 47 03.0   14.0
          16.39809   21 06 33.08   -32 41 18.1
          19.37292   21 14 58.66   -26 28 47.1   14.2

     Very preliminary orbital elements from the above observations:

     T = 1991 June 18.83 ET           Peri. = 316.00
     e = 0.6246                       Node  = 306.24    1950.0
     q = 1.0323 AU                    Incl. =   5.52
       a =  2.7501 AU      n = 0.21612      P =   4.56 years

     1991 ET      R.A. (1950) Decl.     Delta      r       V
     July 23    21 21.20    -20 52.4    0.116    1.127    13.4
          28    21 25.89    -15 35.1
     Aug.  2    21 28.13    -12 04.9    0.172    1.184    14.2
           7    21 29.10    - 9 42.6
          12    21 29.45    - 8 05.1    0.238    1.250    14.8
          17    21 29.65    - 6 58.0
          22    21 29.96    - 6 11.8    0.314    1.322    15.6
          27    21 30.54    - 5 40.1
     Sept. 1    21 31.48    - 5 18.6    0.401    1.399    16.5


PERIODIC COMET VAN BIESBROECK (1989h1)
     Total visual magnitude estimates (cf. IAUC 5276):  May 26.91
UT, 13.9 (A. Pearce, Scarborough, W. Australia, 0.41-m reflector);
June 8.40, 13.3 (C. S. Morris, Lockwood Valley, CA, 0.51-m
reflector); 16.44, 13.4 (A. Hale, Las Cruces, NM, 0.41-m reflector);
21.43, 13.4 (Hale); July 15.39, 13.3 (Morris, Pine Mountain Club,
CA, 0.26-m reflector).


1991 July 30                   (5314)             Daniel W. E. Green

Read IAUC 5313 SEARCH Read IAUC 5315

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

Valid HTML 4.01!