Central Bureau for Astronomical Telegrams
IAUC 3157: 1975 VII; 1977m
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Read IAUC 3158
Circular No. 3157
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 Telex: 921428
Telephone: (617) 864-5758
PERIODIC COMET SMIRNOVA-CHERNYKH (1975 VII)
Extension of the ephemeris on IAUC 3010:
1978 ET R. A. (1950) Decl. Delta r m2
Feb. 21 19 57.79 -23 47.0 5.207 4.433 20.0
Mar. 3 20 08.00 -23 26.6
13 20 17.59 -23 06.7 5.021 4.453 20.0
23 20 26.42 -22 48.3
Apr. 2 20 34.42 -22 32.2 4.781 4.474 19.9
12 20 41.47 -22 19.2
22 20 47.44 -22 10.4 4.506 4.493 19.8
May 2 20 52.24 -22 06.5
12 20 55.73 -22 08.3 4.220 4.513 19.7
22 20 57.82 -22 16.2
June 1 20 58.44 -22 30.4 3.952 4.531 19.5
11 20 57.52 -22 50.7
21 20 55.10 -23 16.3 3.734 4.549 19.4
July 1 20 51.29 -23 45.8
11 20 46.30 -24 17.3 3.600 4.567 19.4
21 20 40.46 -24 48.6
31 20 34.18 -25 17.4 3.574 4.584 19.4
Aug. 10 20 27.94 -25 41.8
20 20 22.22 -26 00.4 3.665 4.600 19.4
30 20 17.44 -26 12.5
Sept. 9 20 13.91 -26 17.9 3.859 4.616 19.6
19 20 11.86 -26 17.0
29 20 11.36 -26 10.4 4.131 4.631 19.7
OCt. 9 20 12.43 -25 58.6
19 20 14.99 -25 42.2 4.445 4.645 19.9
29 20 18.92 -25 21.6
Nov. 8 20 24.10 -24 57.2 4.770 4.659 20.1
18 20 30.36 -24 29.2
28 20 37.55 -23 57.8 5.074 4.672 20.2
Dec. 8 20 45.52 -23 23.2
18 20 54.13 -22 45.7 5.334 4.684 20.3
COMET KOHLER (1977m)
Further precise positions have been reported as follows:
1977 UT R. A. (1950) Decl. Observer
Oct. 17.78056 17 21 16.42 + 9 55 30.2 Maiwald
Nov. 1.73879 18 26 25.90 - 1 42 12.6 Ferreri
1.74294 18 26 27.02 - 1 42 26.6 "
7.46493 18 54 56.89 - 6 45 54.0 K. Suzuki
8.79396 19 01 49.49 - 7 57 39.3 Torras
8.81479 19 01 56.07 - 7 58 44.9 "
9.46076 19 05 18.78 - 8 33 39.6 K. Suzuki
9.46215 19 05 19.13 - 8 33 44.8 "
9.76613 19 06 54.99 - 8 50 06.2 Codina
9.79287 19 07 03.13 - 8 51 36.1 "
10.41840 19 10 21.60 - 9 25 24.9 Natori
10.73333 19 12 01.94 - 9 42 25.9 Zappala
10.77188 19 12 14.18 - 9 44 30.1 "
10.80773 19 12 25.69 - 9 46 23.3 Torras
10.82856 19 12 32.01 - 9 47 29.2 "
11.45451 19 15 52.21 -10 21 18.0 K. Suzuki
11.45590 19 15 52.78 -10 21 21.7 "
12.75206 19 22 50.78 -11 30 59.4 Codina
12.78366 19 23 01.19 -11 32 47.0 "
15.72685 19 39 07.08 -14 08 48.5 Ferreri
15.73031 19 39 08.27 -14 09 01.5 "
16.72569 19 44 39.62 -15 00 53.9 Zappala
16.73194 19 44 41.60 -15 01 12.6 "
16.75181 19 44 48.29 -15 02 12.6 Codina
16.78340 19 44 58.54 -15 03 58.4 "
17.71806 19 50 12.08 -15 52 00.8 De Sanctis
17.72292 19 50 13.69 -15 52 15.5 "
19.72604 20 01 30.59 -17 33 16.7 "
19.73507 20 01 33.62 -17 33 43.0 "
21.40694 20 11 03.73 -18 55 26.0 Urata
21.41111 20 11 05.23 -18 55 37.9 "
22.37821 20 16 37.01 -19 41 42.0 Natori
22.38186 20 16 38.25 -19 41 53.1 "
27.39190 20 45 30.65 -23 23 59.7 "
27.39282 20 45 31.03 -23 24 02.9 "
27.70932 20 47 20.76 -23 37 04.1 Ferreri
27.71278 20 47 22.18 -23 37 10.6 "
28.70793 20 53 07.73 -24 17 10.9 "
28.71139 20 53 09.03 -24 17 24.9 "
30.37500 21 02 47.15 -25 21 23.0 Urata
30.37778 21 02 48.10 -25 21 29.6 "
Dec. 4.71048 21 27 46.98 -27 50 12.5 Ferreri
4.71463 21 27 48.13 -27 50 19.7 "
D. Maiwald (Wilhelm Foerster Obs.) Measurer: B. Wedel et al.
W. Ferreri, V. Zappala and G. De Sanctis (Pino Torinese Obs.).
N. Torras and J. M. Codina (Fabra Observatory, Barcelona).
K. Suzuki (JCPM Oi Station). 21-cm f/5 reflector. Measurer: T.
Urata. From Nihondaira Obs. Circ. No. 922.
A. Natori, T. Suzuki and Urata (JCPM Yakiimo Station). 31-cm f/5.6
reflector. Measurer: Urata. From ibid. Nos. 922 and 926.
1978 January 3 (3157) Brian G. Marsden
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