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IAUC 5853: 1993 OL; 1993X

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                                                  Circular No. 5853
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@CFA or GREEN@CFA (.SPAN, .BITNET or .HARVARD.EDU)


1993 OL
     Selected recent precise positions:

     1993 UT             R.A. (2000) Decl.         I    Observer
     Aug. 19.02981   16 48 37.84   - 2 30 50.1          McCrosky
          19.03131   16 48 37.21   - 2 30 42.3            "
          22.02421   16 28 55.65   + 1 04 12.3            "
          22.02712   16 28 54.52   + 1 04 24.6            "
          24.03634   16 16 32.32   + 3 20 51.4   15.9   deYoung
          24.04314   16 16 29.89   + 3 21 18.7   16.0     "
          31.01684   15 38 12.12   +10 17 18.2   16.6     "
          31.02094   15 38 10.88   +10 17 30.9   16.9     "

R. E. McCrosky and C.-Y. Shao (Oak Ridge).  1.5-m reflector + CCD.
J. DeYoung (U.S. Naval Observatory, Washington).  0.61-m reflector + CCD.

     Improved orbital elements from the above observations and those
on MPC 22445-22468:

     T = 1993 Oct. 14.6275 TT         Peri. = 126.6392
     e = 0.762516                     Node  = 302.6604  2000.0
     q = 0.423822 AU                  Incl. =  37.8955
       a =  1.784632 AU    n = 0.4134101    P =   2.384 years

1993 TT     R. A. (2000) Decl.     Delta      r    Elong. Phase      V
Aug. 21    16 35.50    - 0 07.7    0.350    1.118   98.5   63.5     15.7
     26    16 05.09    + 5 27.4    0.370    1.049   85.5   73.9     16.0
     31    15 38.30    +10 16.5    0.397    0.978   74.0   83.0     16.3
Sept. 5    15 14.09    +14 20.1    0.428    0.905   63.8   91.1     16.7
     10    14 51.28    +17 41.1    0.462    0.830   54.6   98.3     17.0
     15    14 28.78    +20 20.4    0.499    0.754   46.5  104.9     17.3
     20    14 05.73    +22 13.3    0.539    0.679   39.3  110.5     17.5
     25    13 41.74    +23 08.7    0.585    0.605   33.2  114.9     17.7


SUPERNOVA 1993X IN NGC 2276
     M. Tombelli, A. Boattini and S. Bartolini, Montelupo, near Florence,
provide the following precise position, obtained with a 0.20-m reflector +
CCD): R.A. = 7h10m46s.8, Decl. = +85 52'05".9 (equinox 1950.0).


1993 September 4               (5853)              Brian G. Marsden

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