Central Bureau for Astronomical Telegrams
IAUC 4916: 1989a1
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Read IAUC 4917
Circular No. 4916
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 AARSETH-BREWINGTON (1989a1)
Improved parabolic orbital elements from MPC 15520:
T = 1989 Dec. 27.886 ET Peri. = 205.272
Node = 345.208 1950.0
q = 0.30060 AU Incl. = 88.378
1989 ET R.A. (1950) Decl. Delta r m1
Nov. 30 16 19.97 +18 10.5 1.278 0.816 7.7
Dec. 1 16 20.20 +17 15.2
2 16 20.43 +16 18.3 1.250 0.773 7.4
3 16 20.67 +15 19.5
4 16 20.91 +14 18.6 1.221 0.730 7.1
5 16 21.17 +13 15.4
6 16 21.43 +12 09.9 1.191 0.686 6.7
7 16 21.72 +11 01.7
8 16 22.02 + 9 50.5 1.161 0.642 6.4
9 16 22.36 + 8 36.2
10 16 22.73 + 7 18.4 1.130 0.597 6.0
11 16 23.14 + 5 56.9
12 16 23.61 + 4 31.1 1.099 0.553 5.6
13 16 24.15 + 3 00.9
14 16 24.79 + 1 25.7 1.069 0.509 5.2
15 16 25.53 - 0 14.8
16 16 26.42 - 2 01.1 1.038 0.466 4.8
17 16 27.48 - 3 53.6
18 16 28.77 - 5 52.7 1.010 0.424 4.3
19 16 30.33 - 7 58.8
20 16 32.24 -10 12.2 0.983 0.386 3.8
Further total visual magnitude estimates: Nov. 29.22 UT, 7.8
(P. Schmeer, Bischmisheim, W. Germany, 20x80 binoculars); 29.74,
7.4 (J.-C. Merlin, Le Creusot, France, 7x50 binoculars); 29.97, 7.4
(G. R. Chester, Rixeyville, VA, 0.37-m reflector; tail about 30'
long in p.a. 0 deg); 30.26, 7.3 (A. Pereira, Cabo da Roca, Portugal,
9x34 binoculars).
1989 November 30 (4916) Daniel W. E. Green
Read IAUC 4917
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