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IAUC 4918: 1989r

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                                               Circular No. 4918
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


COMET OKAZAKI-LEVY-RUDENKO (1989r)
     Orbital elements from MPC 15520:

                    Epoch = 1989 Nov. 10.0 ET
     T = 1989 Nov. 11.91653 ET        Peri. = 150.57406
     e = 1.0002973                    Node  = 274.81232 1950.0
     q = 0.6423668 AU                 Incl. =  90.15044

     1989 ET      R.A. (1950) Decl.     Delta      r       m1
     Dec. 10    12 20.37    -61 33.0    0.582    0.869     6.7
          11    12 16.09    -64 12.7
          12    12 11.28    -66 43.9    0.613    0.896     7.0
          13    12 05.81    -69 06.6
          14    11 59.5     -71 21.0    0.647    0.923     7.2
          15    11 52.1     -73 27.2
          16    11 43.2     -75 25.4    0.684    0.952     7.5
          17    11 32.5     -77 15.7
          18    11 19.2     -78 57.9    0.724    0.980     7.7
          19    11 02.3     -80 31.9
          20    10 40.4     -81 56.9    0.766    1.009     8.0
          21    10 11.6     -83 11.7
          22     9 33.5     -84 14.1    0.809    1.039     8.2
          23     8 44       -85 00.9
          24     7 44       -85 28.3    0.854    1.068     8.4
          25     6 40       -85 34.0
          26     5 40       -85 19.8    0.899    1.098     8.7
          27     4 52.1     -84 50.9
          28     4 15.3     -84 12.8    0.944    1.128     8.9
          29     3 47.6     -83 29.7
          30     3 26.8     -82 44.0    0.990    1.158     9.1

     Further total visual magnitude estimates (cf. IAUC 4914):  Nov.
30.26 UT, 5.7 (A. Pereira, Cabo da Roca, Portugal, 9x34 binoculars);
Dec. 1.71, 5.9 (G. Garradd, Tamworth, N.S.W., 10x50 binoculars; 4-deg
tail); 2.52, 6.2 (R. Keen, Mt. Thorodin, CO, 8x40 binoculars); 3.29,
6.6 (T. Moore, Cerro Los 4 Vientos, Laja, Chile, 0.32-m reflector);
5.79, 6.2 (A. Pearce, Scarborough, W. Australia, 20x80 binoculars;
0.75-deg tail in p.a. 275 deg).


1989 December 6                (4918)             Daniel W. E. Green

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