Central Bureau for Astronomical Telegrams
IAUC 3139: 1977l; P/ENCKE
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Read IAUC 3140
Circular No. 3139
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 CHERNYKH (1977l)
Further precise positions have been reported as follows:
1977 UT R. A. (1950) Decl. Mag. Observer
Sept. 4.52843 0 17 13.52 - 4 17 23.8 Lagerkvist
7.52579 0 16 10.02 - 4 32 34.6 "
7.54102 0 16 09.67 - 4 32 39.2 "
8.52582 0 15 47.12 - 4 37 47.1 "
10.55706 0 14 58.26 - 4 48 27.0 "
10.57403 0 14 57.75 - 4 48 32.3 "
13.92755 0 13 30.60 - 5 06 36.6 13.4 Mrkos
13.94248 0 13 30.20 - 5 06 41.5 "
14.50112 0 13 15.08 - 5 09 36.0 Lagerkvist
14.56623 0 13 13.18 - 5 09 57.0 "
14.88333 0 13 04.61 - 5 11 46.6 13.2 Mrkos
14.89855 0 13 03.88 - 5 11 48.8 "
15.54860 0 12 46.03 - 5 15 15.5 Lagerkvist
16.57185 0 12 17.11 - 5 20 49.0 "
16.66396 0 12 14.28 - 5 21 18.3 "
16.91278 0 12 07.37 - 5 22 46.3 13.2 Vavrova
17.46662 0 11 51.52 - 5 25 38.4 Lagerkvist
17.71801 0 11 43.91 - 5 27 01.1 "
Oct. 6.87315 0 02 00.01 - 7 03 01.7 13.0 Mrkos
6.88397 0 01 59.78 - 7 03 04.1 "
7.83484 0 01 32.21 - 7 01 01.3 13.0 "
7.84566 0 01 31.90 - 7 01 03.0 "
8.84368 0 01 03.57 - 7 11 08.1 12.8 "
8.85444 0 01 03.17 - 7 11 10.6 "
9.64688 0 00 40.73 - 7 14 16.8 13 Furuta
9.65625 0 00 40.42 - 7 14 19.0 "
9.87169 0 00 34.70 - 7 15 10.2 12.8 Vavrova
9.88289 0 00 34.32 - 7 15 12.2 "
16.87660 23 57 37.35 - 7 38 46.6 12.6 Mrkos
16.88910 23 57 37.10 - 7 38 48.8 "
17.48958 23 57 23.73 - 7 40 26.9 13 Seki
17.91785 23 57 14.33 - 7 41 38.3 12.5 Mrkos
17.92861 23 57 14.08 - 7 41 39.9 "
18.52743 23 57 01.03 - 7 43 09.8 Furuta
18.53854 23 57 01.01 - 7 43 13.3 "
18.90122 23 56 53.44 - 7 44 10.8 12.5 Mrkos
18.91256 23 56 53.24 - 7 44 12.9 "
19.95122 23 56 32.07 - 7 46 44.1 12.5 Vavrova
19.96233 23 56 31.92 - 7 46 45.1 "
C.-I. Lagerkvist (Uppsala Southern Station, Mount Stromlo). Measured
at Turin Observatory. Communicated by V. Zappala.
A. Mrkos and Vavrova (Klet Observatory).
T. Furuta (Tokai, Oct. 9; Kagiya, Oct. 18) and T. Seki (Geisei).
From Orient. Astron. Assoc. Comet Bull. No. 154.
Ephemeris from the orbital elements on IAUC 3128:
1977/78 ET R. A. (1950) Decl. Delta r m1
Dec. 23 0 17.92 - 4 29.3 2.385 2.606 13.0
Jan. 2 0 28.41 - 3 08.3
12 0 40.31 - 1 39.2 2.609 2.583 13.2
22 0 53.42 - 0 03.7
Feb. 1 1 07.56 + 1 36.2 2.829 2.571 13.4
11 1 22.61 + 3 18.9
21 1 38.43 + 5 02.7 3.036 2.569 13.5
Mar. 3 1 54.93 + 6 46.0
13 2 12.02 + 8 27.3 3.225 2.577 13.7
23 2 29.61 +10 05.4
Apr. 2 2 47.64 +11 38.8 3.392 2.596 13.8
PERIODIC COMET ENCKE
Further precise positions have been reported as follows:
1977 UT R. A. (1950) Decl. Observer
Aug. 30.45556 11 46 33.81 -03 28 52.7 Jekabsons
30.46597 11 46 38.46 -03 29 32.2 "
31.45556 11 54 00.85 -04 32 55.7 Candy
31.46330 11 54 04.29 -04 33 26.8 "
Sept. 1.45694 12 01 25.75 -05 35 59.1 Gans
2.45972 12 08 48.49 -06 37 58.9 Jekabsons
5.45694 12 30 36.54 -09 35 43.4 Candy
7.45972 12 44 58.49 -11 27 44.7 Jekabsons
9.46319 12 59 11.26 -13 13 54.4 Verveer
11.45833 13 13 09.94 -14 53 31.5 Candy
12.00096 13 16 56.26 -15 19 37.8 Schuster
13.46736 13 27 03.68 -16 27 36.9 Jekabsons
18.47986 14 00 47.33 -19 53 45.2 Candy
Oct. 4.51250 15 36 54.62 -26 41 19.8 Verveer
10.02562 16 05 15.30 -27 51 14.9 Schuster
P. Jekabsons, M. P. Candy, D. J. Gans and A. Verveer (Perth Observatory).
The positions on IAUC 3115 are replaced here.
H.-E. Schuster (European Southern Observatory). Measurer: Z.
Sekanina. On Sept. 12 a broad tail extended ~ 1'.5 in p.a. 290o
(sunward); there was possibly a second tail, blending with a
star trail, in p.a. 120o; coma diameter 27", sharp condensation.
1977 November 21 (3139) Brian G. Marsden
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