Central Bureau for Astronomical Telegrams
IAUC 4843: 1989r; VW Hyi
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Read IAUC 4844
Circular No. 4843
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)
H. Kosai, National Astronomical Observatory of Japan, reports
the following additional precise observations by S. Otomo, Yamamoto
(measured by M. Koishikawa):
1989 UT R.A. (1950) Decl.
Aug. 29.47049 15 19 56.55 +33 52 04.0
29.47708 15 19 56.03 +33 52 02.0
29.48542 15 19 55.25 +33 51 56.5
29.50914 15 19 52.96 +33 51 50.2
The following preliminary parabolic orbital elements by the
undersigned are from 15 observations, Aug. 24-30:
T = 1989 Nov. 11.892 ET Peri. = 150.626
Node = 274.784 1950.0
q = 0.64156 AU Incl. = 90.113
1989 ET R.A. (1950) Decl. Delta r m1
Aug. 22 15 33.51 +34 32.1 1.565 1.668 10.2
27 15 24.17 +34 06.0
Sept. 1 15 15.88 +33 37.4 1.572 1.519 9.8
6 15 08.52 +33 07.8
11 15 01.94 +32 38.2 1.565 1.368 9.3
16 14 56.00 +32 09.3
21 14 50.51 +31 41.3 1.534 1.216 8.8
26 14 45.32 +31 14.1
Oct. 1 14 40.25 +30 47.3 1.473 1.065 8.1
Total visual magnitude estimates (cf. IAUC 4841): Aug. 29.10
UT, 10.2 (G. Kronk, Troy, IL, 0.33-m reflector); 29.90, 10.3 (A.
Boattini, Piazzano, Italy, 0.40-m reflector); 30.19, 9.8 (C. S.
Morris, Pine Mountain Club, CA, 0.26-m reflector).
VW HYDRI
Corrigendum. On IAUC 4814, lines 2-3, for an unusually bright
read a bright
1989 August 30 (4843) Daniel W. E. Green
Read IAUC 4844
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