Central Bureau for Astronomical Telegrams
IAUC 4699: 1988r; 1989a
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Read IAUC 4700
Circular No. 4699
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 YANAKA (1988r)
Precise position measured by B. Roman from a film taken by E.
Helin, R. Helin, R. Crockett and himself with the 0.46-m Palomar Schmidt:
1989 UT R.A. (1950) Decl. m1
Jan. 3.48872 16 11 41.91 - 2 55 11.3 9.5
Parabolic orbital elements from eight observations Jan. 1-3:
T = 1988 Dec. 11.76 ET Peri. = 88.41
Node = 315.46 1950.0
q = 0.4301 AU Incl. = 70.35
1989 ET R.A. (1950) Decl. Delta r m1
Jan. 2 16 19.70 - 1 25.2 0.547 0.682 9.5
4 16 08.82 - 3 28.4
6 15 56.95 - 5 52.6 0.481 0.755 9.7
8 15 43.84 - 8 39.0
10 15 29.17 -11 48.6 0.424 0.829 9.8
12 15 12.54 -15 21.5
14 14 53.51 -19 15.9 0.378 0.903 9.9
16 14 31.62 -23 26.9
18 14 06.41 -27 45.7 0.349 0.977 10.1
20 13 37.62 -31 59.0
22 13 05.35 -35 50.3 0.341 1.050 10.4
24 12 30.27 -39 03.3
26 11 53.69 -41 26.3 0.356 1.123 10.8
28 11 17.37 -42 55.2
30 10 43.05 -43 33.9 0.392 1.195 11.2
Feb. 1 10 11.96 -43 31.8
3 9 44.70 -43 00.0 0.445 1.265 11.8
COMET YANAKA (1989a)
Precise positions measured by B. Roman from films taken by E.
Helin, R. Helin, R. Crockett and himself with the 0.46-m Palomar Schmidt:
1989 UT R.A. (1950) Decl. m1
Jan. 3.45747 13 48 27.41 + 9 53 16.7 10.5
3.48281 13 48 30.21 + 9 53 45.3
1989 January 4 (4699) Brian G. Marsden
Read IAUC 4700
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