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IAUC 6081: 1994o

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                                                  Circular No. 6081
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)


PERIODIC COMET MACHHOLZ 2 (1994o)
     Improved orbital elements from MPC 23956:

     T = 1994 Sept.18.8010 TT         Peri. = 149.2566
     e = 0.750261                     Node  = 246.1808  2000.0
     q = 0.752551 AU                  Incl. =  12.7877
       a =  3.013353 AU    n = 0.1884209    P =   5.231 years

1994 TT     R. A. (2000) Decl.   Delta     r    Elong. Phase    m1
Sept.25     9 06.69   +20 55.9   0.731   0.760   49.0   84.5    8.0
     30     9 20.42   +17 33.2   0.791   0.777   49.7   79.4    8.3
Oct.  5     9 33.52   +14 26.7   0.848   0.802   50.6   74.6    8.7
     10     9 45.99   +11 34.4   0.902   0.834   51.7   70.1    9.1
     15     9 57.83   + 8 54.8   0.953   0.873   53.1   66.0    9.5
     20    10 09.01   + 6 26.4   1.000   0.916   54.7   62.4    9.9
     25    10 19.50   + 4 08.1   1.042   0.964   56.4   59.3   10.3
     30    10 29.29   + 1 59.0   1.080   1.014   58.4   56.5   10.8
Nov.  4    10 38.37   - 0 01.8   1.113   1.067   60.6   54.1   11.2
      9    10 46.70   - 1 54.9   1.141   1.121   63.0   51.9   11.5
     14    10 54.29   - 3 40.9   1.165   1.176   65.6   50.0   11.9
     19    11 01.11   - 5 20.2   1.185   1.232   68.4   48.2   12.2
     24    11 07.16   - 6 53.4   1.200   1.288   71.4   46.6   12.5

     The orbital elements and ephemeris above refer to the principal
nucleus, designated component A.  Components B, C, D and E are
designated in order eastward from component A and are thus the fourth,
third, second and fifth components, respectively, mentioned on IAUC
6071, 6070, 6066, and 6071.  Their positions can be described well
with the above orbital elements, provided that T is changed to Sept.
18.866, 19.199, 19.206 and 19.267, respectively.
     Total visual magnitude and coma-diameter estimates of component
B (cf. IAUC 6071):  Sept. 9.45 UT, 12.0, 2' (R. A. Keen, Mount
Thorodin, CO, 0.32-m reflector); 11.51, 11.9, 1'.4 (C. S. Morris,
Pine Mountain Club, CA, 0.26-m reflector).
     Total visual magnitude and coma-diameter estimates of component
D (cf. IAUC 6074):  Sept. 9.45 UT, 11.0, 3' (Keen); 11.48, 11.3,
3'.3 (Morris).


1994 September 21              (6081)            Daniel W. E. Green

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