Central Bureau for Astronomical Telegrams
IAUC 5145: 1990c; 1989e1
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Circular No. 5145
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 LEVY (1990c)
Extension of ephemeris on IAUC 5116, from elements on MPC
17401:
1990 ET R.A. (1950) Decl. Delta r m1
Dec. 15 13 51.19 -40 36.1 1.720 1.289 7.3
25 13 33.27 -40 29.0
Jan. 4 13 09.27 -40 01.0 1.490 1.524 7.7
14 12 37.00 -38 45.1
24 11 55.37 -35 56.7 1.243 1.772 8.0
Feb. 3 11 06.76 -30 45.9
13 10 17.75 -23 06.3 1.151 2.023 8.4
23 9 35.53 -14 13.9
Mar. 5 9 03.60 - 5 58.0 1.366 2.272 9.2
15 8 41.57 + 0 42.2
25 8 27.52 + 5 43.1 1.826 2.518 10.3
Apr. 4 8 19.43 + 9 23.8
14 8 15.65 +12 05.6 2.396 2.758 11.3
Total visual magnitude estimates (cf. IAUC 5123): Nov. 26.81
UT, 6.5 (A. Pearce, Scarborough, W.A., 20x80 binoculars); 28.81, 6.5
(Pearce); Dec. 10.53, 7.5: (A. Hale, Las Cruces, NM, 0.20-m
reflector).
COMET SKORICHENKO-GEORGE (1989e1)
Extension of ephemeris on IAUC 5089, from elements on MPC
17400:
1990 ET R.A. (1950) Decl. Delta r m1
Dec. 15 9 08.59 -35 57.6 3.122 3.445 12.8
25 9 00.44 -38 24.0
Jan. 4 8 50.14 -40 22.0 3.164 3.638 13.1
14 8 38.28 -41 47.2
24 8 25.70 -42 37.3 3.270 3.830 13.4
Feb. 3 8 13.39 -42 53.2
13 8 02.25 -42 38.6 3.446 4.020 13.7
23 7 52.98 -41 59.2
Mar. 5 7 46.00 -41 02.2 3.690 4.209 14.1
15 7 41.41 -39 54.3
25 7 39.16 -38 41.6 3.989 4.396 14.4
1990 December 12 (5145) Daniel W. E. Green
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