Central Bureau for Astronomical Telegrams
IAUC 4193: 1986b; SW UMa; 1985q
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Read IAUC 4194
Circular No. 4193
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Postal Address: Central Bureau for Astronomical Telegrams
Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
TWX 710-320-6842 ASTROGRAM CAM Telephone 617-495-7244/7440/7444
COMET SHOEMAKER (1986b)
C. and E. Shoemaker provide the following precise positions of
observations made at Palomar (cf. IAUC 4191):
1986 UT R.A. (1950.0) Decl.
Mar. 4.33246 12 14 28.47 +23 47 02.7
8.24895 12 04 24.15 +24 45 37.0
8.46822 12 03 49.50 +24 48 45.5
9.37899 12 01 26.00 +25 01 46.6
Parabolic orbital elements by the undersigned, based on the
four available observations:
T = 1986 Feb. 27.93 ET Peri. = 120.71
Node = 293.56 1950.0
q = 3.6079 AU Incl. = 159.91
1986 ET R.A. (1950.0) Decl. p r m1
Mar. 1 12 22.73 +22 54.6 2.702 3.608 15.7
6 12 10.23 +24 12.4
11 11 57.14 +25 24.3 2.674 3.609 15.7
16 11 43.70 +26 28.3
21 11 30.17 +27 23.0 2.703 3.613 15.7
26 11 16.82 +28 07.6
31 11 03.89 +28 41.9 2.789 3.619 15.8
Apr. 5 10 51.60 +29 06.2
10 10 40.12 +29 21.2 2.921 3.627 15.9
15 10 29.57 +29 28.1
20 10 20.02 +29 27.9 3.091 3.637 16.1
SW URSAE MAJORIS
J. A. Mattei, AAVSO, reports the following visual magnitude
estimates (cf. IAUC 4188): Mar. 5.81 UT, 10.3 (K. Medway,
Southampton, England); 6.25, 10.7 (J. McKenna, Upper Montclaire, NJ);
8.06, 10.0 (R. Ariail, Columbia, SC).
PERIODIC COMET WIRTANEN (1985q)
Further total visual magnitude estimates: Mar. 1.02 UT, 10.3
(J. E. Bortle, Stormville, NY, 0.32-m reflector); Mar. 4.08, 9.2
(R. Keen, Mt. Thorodin, CO, 0.32-m reflector).
1986 March 12 (4193) Daniel W. E. Green
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