Central Bureau for Astronomical Telegrams
IAUC 4512: 1982i; 1987p; 1987d1
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Circular No. 4512
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
PERIODIC COMET HALLEY (1982i)
K. J. Meech, University of Hawaii, reports that strongly
condensed images were observed with the 2.3-m reflector on Nov.
26. Her preliminary analysis gave a Mould V magnitude of 19.6
within a diaphragm of radius 5".
PERIODIC COMET BORRELLY (1987p)
Total visual magnitude estimates: Nov. 28.29 UT, 7.7 (A. Hale,
Las Cruces, NM, 10 x 50 binoculars); Dec. 7.78, 8.4 (J. Shanklin,
Cambridge, England, 0.33-m reflector); 9.13, 7.5 (Hale); 9.82, 8.2
(P. Schmeer, Bischmisheim, West Germany, 0.20-m reflector); 11.97,
7.5 (A. Pereira, Linda-A-Velha, Portugal, 0.15-m reflector); 13.46,
7.5 (G. Garradd, Tamworth, N.S.W., 7 x 50 binoculars);
COMET ICHIMURA (1987d1)
Total visual magnitude estimates: Nov. 28.26 UT, 8.4 (A.
Hale, Las Cruces, NM, 10 x 50 bin.); 29.32 UT, 7.9 (R. A. Keen,
Mt. Thorodin, CO, 20 x 120 bin.); Dec. 13.45, 7.5 (D. Seargent,
The Entrance, N.S.W., 10 x 50 bin.); 14.45, 7.5 (Seargent).
Continuation to the ephemeris on IAUC 4507:
1987/88 ET R.A. (1950) Decl. Delta r m1
Dec. 25 19 21.59 -49 15.3 0.558 0.568 6.8
26 19 14.96 -48 11.1
27 19 08.81 -47 06.3 0.598 0.516 6.5
28 19 03.10 -46 00.8
29 18 57.79 -44 54.3 0.640 0.462 6.2
30 18 52.87 -43 46.4
31 18 48.33 -42 36.7 0.686 0.408 5.8
Jan. 1 18 44.17 -41 24.8
2 18 40.41 -40 10.0 0.737 0.354 5.3
3 18 37.09 -38 51.8
4 18 34.26 -37 29.4 0.794 0.301 4.8
5 18 32.02 -36 02.0
6 18 30.49 -34 28.8 0.858 0.252 4.2
7 18 29.84 -32 49.1
8 18 30.24 -31 02.7 0.931 0.215 3.7
9 18 31.87 -29 10.2
10 18 34.82 -27 13.7 1.010 0.200 3.5
1987 December 14 (4512) Brian G. Marsden
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