Central Bureau for Astronomical Telegrams
IAUC 2300: 1970r; 1970g; JUPITER IX AND XII
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Read IAUC 2301
Circular No. 2300
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
COMET KOJIMA (1970r)
The following precise positions have been reported:
1970/71 UT R.A. (1950) Decl. m1 Observer
Dec. 27.79167 13 25 49.60 -12 46 48.0 14 Kojima
27.84653 13 25 55.60 -12 47 29.7 "
29.84028 13 29 39.07 -13 13 27.0 14 "
29.86771 13 29 41.66 -13 13 48.3 "
31.87222 13 33 22.25 -13 39 14.1 14 Seki
Jan. 1.80367 13 35 03.63 -13 50 47.1 13 Tomita
1.80888 13 35 04.34 -13 50 55.0 "
1.85903 13 35 09.30 -13 51 33.9 14 Kojima
1.86389 13 35 09.96 -13 51 39.4 14 Seki
2.82522 13 36 53.61 -14 03 28.2 13 Tomita
5.85903 13 42 13.98 -14 40 12.2 Seki
N. Kojima (Ishiki, Aichi). Measurer: H. Kosai. Yamamoto Circ. No.
1731 gives somewhat similar measurements by T. Seki.
T. Seki (Kochi Observatory). 5' tail on Jan. 5.
K. Tomita (Tokyo Observatory, Dodaira station). With condensation.
Continuation to the ephemeris from the elements on IAUC 2299:
1971 TT R. A. (1900) Decl. Delta r m1
Jan. 14 13 55.79 -16 11.6
19 14 03.47 -17 03.1 1.977 2.104 14.2
24 14 10.63 -17 50.8
29 14 17.22 -18 34.8 1.927 2.163 14.3
Feb. 3 14 23.20 -19 15.0
8 14 28.54 -19 51.4 1.879 2.227 14.3
COMET ABE (1970g)
Further precise positions have been reported as follows:
1970/71 UT R.A. (1950) Decl. Observer
Sept. 4.79698 19 14 32.17 +71 14 47.6 Smirnova
21.77659 16 33 07.83 +40 42 39.2 "
21.78701 16 33 05.89 +40 41 42.1 "
23.85460 16 28 01.50 +37 37 45.3 "
29.77194 16 17 42.34 +30 04 32.1 "
29.78027 16 17 41.98 +30 03 58.5 "
30.75867 16 16 25.12 +28 58 31.4 "
30.77117 16 16 24.25 +28 57 41.7 "
Jan. 4.22560 15 46 11.11 -10 29 32.9 Mrkos
5.20937 15 45 42.57 -10 42 38.2 "
5.21424 15 45 42.35 -10 42 42.8 Petrovicova
6.20774 15 45 12.08 -10 55 56.5 Mrkos
6.21781 15 45 11.91 -10 56 05.4 "
T. Smirnova (Crimean Astrophysical Observatory). Reduced at I.T.A.,
Leningrad. Communicated by G. R. Kastel'.
A. Mrkos and R. Petrovicova (Klet Observatory).
JUPITER IX AND XII
Dr. S. Herrick, University of California, Los Angeles,
communicates the following ephemerides, based on starting diagonals
and elements resulting from differential correction from variant
orbits integrated by G. E. Newnam II. Perturbations by the sun and
Saturn were taken into account.
J IX - Jupiter J XII - Jupiter
1971 ET dR.A. dDecl. Mag. dR.A. dDecl. Mag.
Jan. 9 -7m09 + 58'00 19.7 +4m30 - 50'58 19.7
19 -7.06 + 59.02 +4.44 - 47.50
29 -7.00 + 60.12 +4.50 - 43.80
Feb. 8 -6.91 + 61.34 +4.48 - 39.48
18 -6.79 + 62.70 19.5 +4.38 - 34.54 19.6
28 -6.64 + 64.19 +4.20 - 28.99
Mar. 10 -6.45 + 65.80 +3.95 - 22.84
20 -6.24 + 67.46 +3.63 - 16.13
30 -5.99 + 69.09 +3.24 - 8.88
Apr. 9 -5.72 + 70.57 19.1 +2.80 - 1.19 19.3
19 -5.41 + 71.75 +2.31 + 6.84
29 -5.06 + 72.47 +1.79 + 15.03
May 9 -4.68 + 72.54 +1.24 + 23.17
19 -4.26 + 71.82 +0.67 + 31.03
29 -3.80 + 70.21 18.9 +0.09 + 38.35 19.1
June 8 -3.31 + 67.66 -0.49 + 44.91
18 -2.78 + 64.20 -1.06 + 50.52
28 -2.22 + 59.92 -1.63 + 55.06
July 8 -1.64 + 54.98 -2.17 + 58.45
18 -1.05 + 49.52 19.1 -2.68 + 60.70 19.3
28 -0.45 + 43.71 -3.15 + 61.83
Aug. 7 +0.16 + 37.73 -3.56 + 61.91
17 +0.75 + 31.71 -3.92 + 61.02
27 +1.34 + 25.78 -4.22 + 59.26
Sept. 6 +1.90 + 20.03 19.4 -4.44 + 56.72 19.5
1971 January 15 (2300) Brian G. Marsden
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