Central Bureau for Astronomical Telegrams
IAUC 4960: 1989 WM; 1989f1; N LMC 1990
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Read IAUC 4961
Circular No. 4960
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
1989 WM
Improved orbital elements from MPC 15897:
T = 1990 Jan. 18.3665 ET Peri. = 72.4451
e = 0.519249 Node = 48.2613 1950.0
q = 1.312346 AU Incl. = 2.5518
a = 2.729781 AU n = 0.2185306 P = 4.510 years
1990 ET R.A. (1950) Decl. Delta r V
Feb. 18 9 23.63 +24 57.1 0.375 1.353 14.6
28 9 30.34 +23 29.2
Mar. 10 9 38.63 +21 43.4 0.468 1.419 15.5
20 9 48.66 +19 46.6
30 10 00.24 +17 43.8 0.615 1.509 16.4
Apr. 9 10 13.16 +15 37.9
19 10 27.04 +13 31.2 0.812 1.616 17.3
29 10 41.60 +11 24.5
May 9 10 56.68 + 9 18.4 1.054 1.733 18.0
COMET McKENZIE-RUSSELL (1989f1)
Improved orbital elements from MPC 15857:
T = 1989 Nov. 7.700 ET Peri. = 191.759
Node = 293.213 1950.0
q = 1.97583 AU Incl. = 160.333
1990 ET R.A. (1950) Decl. Delta r m1
Feb. 18 2 25.48 - 1 28.7 2.550 2.329 15.2
28 2 22.71 - 1 11.9
Mar. 10 2 22.11 - 0 53.7 3.042 2.460 15.8
20 2 23.00 - 0 35.9
30 2 24.92 - 0 20.2 3.435 2.603 16.3
NOVA IN THE LARGE MAGELLANIC CLOUD 1990
A. C. Gilmore, Mount John University Observatory, communicates
additional photoelectric photometry, obtained by P. M. Kilmartin with
the 0.61-m Cassegrain reflector: Feb. 1.47 UT, V = 14.96 +/- 0.04, U-B
= -1.00 +/- 0.07, B-V = -0.29 +/- 0.06, V-R = +0.52 +/- 0.06.
1990 February 7 (4960) Gareth V. Williams
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