Central Bureau for Astronomical Telegrams
IAUC 2807: P/HARRINGTON-ABELL
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Read IAUC 2808
Circular No. 2807
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Postal Address: Central Bureau for Astronomical Telegrams
Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Cable Address: SATELLITES, NEWYORK
Western Union: RAPID SATELLITE CAMBMASS
PERIODIC COMET HARRINGTON-ABELL
The following ephemeris is from Handb. Br. Astron. Assoc. for
1975, with an extension into 1976:
For dT = +1d
1975/76 ET R. A. (1950) Decl. Delta r dR.A. dDecl. Mag.
Sept. 5 2 47.84 +26 39.1 2.106 2.674 -1m32 - 7'1 20.2
15 2 51.02 +27 53.2 -1.47 - 7.7
25 2 51.73 +29 01.8 1.792 2.562 -1.63 - 8.6 19.7
Oct. 5 2 49.63 +30 01.9 -1.78 - 9.6
15 2 44.56 +30 49.3 1.540 2.451 -1.91 -10.8 19.2
25 2 36.78 +31 19.5 -2.01 -12.2
Nov. 4 2 27.00 +31 28.1 1.374 2.342 -2.05 -13.5 18.7
14 2 16.51 +31 14.1 -2.03 -14.6
24 2 06.91 +30 40.7 1.309 2.237 -1.95 -15.2 18.6
Dec. 4 1 59.65 +29 55.4 -1.85 -15.2
14 1 55.84 +29 07.7 1.333 2.138 -1.74 -14.8 18.7
24 1 56.00 +28 26.3 -1.64 -14.0
Jan. 3 2 00.18 +27 56.8 1.420 2.045 -1.57 -13.0 18.9
13 2 08.23 +27 41.9 -1.53 -11.9
23 2 19.80 +27 41.2 1.537 1.962 -1.51 -10.8 19.1
Feb. 2 2 34.53 +27 52.6 -1.51 - 9.7
12 2 52.11 +28 12.9 1.666 1.891 -1.53 - 8.5 19.2
22 3 12.21 +28 38.1 -1.57 - 7.3
Mar. 3 3 34.54 +29 03.8 1.797 1.835 -1.61 - 6.0 19.3
13 3 58.84 +29 25.8 -1.65 - 4.7
23 4 24.77 +29 39.9 1.926 1.796 -1.69 - 3.3 19.4
Apr. 2 4 52.02 +29 42.3 -1.71 - 1.8
12 5 20.26 +29 30.0 2.058 1.776 -1.72 - 0.2 19.5
22 5 49.08 +29 00.9 -1.72 + 1.3
May 2 6 18.14 +28 13.7 2.194 1.776 -1.69 + 2.8 19.6
12 6 47.10 +27 08.1 -1.64 + 4.2
22 7 15.63 +25 44.7 2.338 1.797 -1.58 + 5.5 19.7
June 1 7 43.52 +24 04.9 -1.51 + 6.6
11 8 10.59 +22 10.7 2.490 1.836 -1.43 + 7.4 19.8
21 8 36.73 +20 04.1 -1.35 + 8.1
July 1 9 01.90 +17 47.7 2.650 1.892 -1.26 + 8.6 19.9
m2 = 16.0 + 5 log Delta + 5 log r + 0.03 (phase angle)
1975 July 29 (2807) Brian G. Marsden
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