Central Bureau for Astronomical Telegrams
IAUC 3965: 1984j
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Read IAUC 3966
Circular No. 3965
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 TAKAMIZAWA (1984j)
The following precise positions have been reported:
1984 UT R.A. (1950.0) Decl. m1 Observer
July 31.67891 21 12 14.23 -18 57 28.7 10 Saito
Aug. 1.43368 21 12 00.27 -19 07 38.7 9 Helin
1.69618 21 11 56.51 -19 11 12.8 10 Ishida
2.02546 21 11 50.6 -19 15 39 Maury
2.29785 21 11 46.32 -19 19 20.0 Balam
2.44803 21 11 43.84 -19 21 04.9 Herald
2.44957 21 11 43.83 -19 21 05.8 "
2.58368 21 11 41.34 -19 22 54.3 9 Kinnear
2.59462 21 11 41.08 -19 23 03.2 "
K. Saito (Tokyo Observatory, Dodaira Station). Measurer: H. Kosai.
E. Helin (Palomar). 1.2-m Schmidt. Accidental image 1' in diameter,
slightly elongated, no definite condensation, tail 1' to
the west. Measurer: S. Swanson (assisted by R. S. Dunbar).
K. Ishida (Tokyo Observatory, Kiso Station). 1.05-m Schmidt.
A. Maury and R. Chemin (CERGA, Caussols). Semi-accurate position.
D. Balam (University of Victoria). 0.25-m f/2 Schmidt.
D. Herald (Kambah, near Canberra).
G. Kinnear (Perth Observatory). Comet diffuse with condensation,
tail ~ 1 deg. Communicated by P. Birch.
The following parabolic orbital elements have been derived by
the undersigned from eight of the above observations. It is quite
probable that the comet is a short-period one.
T = 1984 May 5.08 ET Peri. = 132.40
Node = 125.62 1950.0
q = 1.5613 AU Incl. = 12.71
1984 ET R.A. (1950.0) Decl. p r m1
July 29 21 12.99 -18 20.0 0.928 1.936 9.2
Aug. 3 21 11.56 -19 28.4
8 21 10.10 -20 31.0 1.003 2.016 9.6
13 21 08.75 -21 26.8
18 21 07.62 -22 15.4 1.101 2.099 9.9
23 21 06.82 -22 56.6
28 21 06.42 -23 30.4 1.220 2.185 10.3
1984 August 3 (3965) Brian G. Marsden
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