Central Bureau for Astronomical Telegrams
IAUC 4864: 1989s; 1989 JA; 1988h
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Read IAUC 4865
Circular No. 4864
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 HELIN-ROMAN (1989s)
Ephemeris extension to IAUC 4849:
1989 ET R.A. (1950) Decl. Delta r m1
Oct. 1 17 13.09 -31 46.9 1.397 1.460 14.4
6 17 11.77 -33 54.2
11 17 11.43 -35 41.5 1.682 1.526 15.0
16 17 11.86 -37 14.2
21 17 12.93 -38 36.2 1.950 1.602 15.5
26 17 14.55 -39 50.1
31 17 16.63 -40 57.9 2.194 1.685 16.0
Nov. 5 17 19.12 -42 01.2
10 17 21.94 -43 01.1 2.413 1.774 16.4
15 17 25.06 -43 58.6
20 17 28.43 -44 54.3 2.603 1.868 16.8
25 17 32.03 -45 48.9
30 17 35.82 -46 42.9 2.764 1.965 17.1
1989 JA
Ephemeris extension to IAUC 4811, from elements on MPC 14957:
1989 ET R.A. (1950) Decl. Delta r V
Oct. 1 4 06.70 - 7 45.7 0.482 1.332 16.9
11 3 44.17 - 5 47.1
21 3 18.12 - 3 28.9 0.520 1.475 16.8
31 2 52.19 - 0 57.3
Nov. 10 2 30.03 + 1 37.0 0.639 1.613 17.1
20 2 13.76 + 4 04.3
30 2 03.67 + 6 20.6 0.850 1.744 18.2
Dec. 10 1 59.18 + 8 26.5
20 1 59.28 +10 23.7 1.130 1.866 19.2
COMET SHOEMAKER-HOLT-RODRIQUEZ (1988h)
Total visual magnitude estimates (cf. IAUC 4800) by A. Pearce,
Scarborough, W.A. (0.20-m reflector): Aug. 31.87 UT, 13.0; Sept.
4.88, 13.0.
1989 September 25 (4864) Daniel W. E. Green
Read IAUC 4865
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