Central Bureau for Astronomical Telegrams
IAUC 3207: 1978b; 1978c; 1977s
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Read IAUC 3208
Circular No. 3207
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 WILD 2 (1978b)
The following precise positions have been reported:
1978 UT R. A. (1950) Decl. m1 Observer
Feb. 25.79998 5 23 30.05 +21 20 51.5 12.8 Mrkos
25.80727 5 23 30.38 +21 20 52.6 "
26.76317 5 24 17.63 +21 24 02.7 12.8 "
27.76395 5 25 09.25 +21 27 22.8 12.9 "
27.77130 5 25 09.65 +21 27 24.2 "
28.76196 5 26 03.19 +21 30 41.0 13.0 "
28.76792 5 26 03.49 +21 30 42.9 "
Mar. 1.8767 5 27 05.82 +21 34 22.0 Manning
2.76326 5 27 58.48 +21 37 21.0 13.2 Mrkos
2.77073 5 27 58.89 +21 37 22.4 "
3.76612 5 28 59.67 +21 40 40.8 13.0 "
3.77064 5 29 00.01 +21 40 40.4 "
3.93730 5 29 09.97 +21 41 15.0 13.0 Haddow
4.76137 5 30 02.89 +21 43 59.1 13.0 Mrkos
4.76580 5 30 03.12 +21 43 59.2 "
4.8510 5 30 08.45 +21 44 16.2 12 Manning
5.8465 5 31 13.69 +21 47 32.4 12 "
5.9097 5 31 18.00 +21 47 43.6 12 Potts
6.8528 5 32 22.63 +21 50 49.2 12 Manning
7.83681 5 33 31.83 +21 54 01.2 Wild
7.92865 5 33 38.42 +21 54 20.3 "
8.56424 5 34 24.28 +21 56 23.2 13 Seki
8.57153 5 34 24.80 +21 56 26.0 "
9.80833 5 35 57.31 +22 00 21.7 Wild
9.90625 5 36 04.51 +22 00 40.6 "
10.78733 5 37 12.56 +22 03 28.1 13.0 Mrkos
10.79190 5 37 12.89 +22 03 29.0 "
11.78858 5 38 31.65 +22 06 36.6 13.2 "
11.79207 5 38 32.06 +22 06 37.6 "
11.92292 5 38 42.41 +22 07 00.7 Wild
12.80409 5 39 54.21 +22 09 46.0 13.2 Vavrova
12.80895 5 39 54.57 +22 09 46.4 "
12.8875 5 40 00.98 +22 10 00.5 12 Manning
13.82465 5 41 19.27 +22 12 54.0 Barbier
A. Mrkos and Z. Vavrova (Klet Observatory).
B. Manning (Stakenbridge). Measurer: P. Birtwhistle.
K. A. Haddow (Woolston Observatory). Measurer: R. L. Waterfield.
Definite elongation and suggestion of tail toward p.a. 135o.
A. Potts (University of London Observatory). 61-cm refractor.
P. Wild (Astronomical Institute, Berne University).
T. Seki (Geisei). From Orient. Astron. Assoc. Comet Bull. No. 163.
R. Barbier (Haute Provence Observatory). CNRS-Liege Schmidt.
Total visual magnitude estimates by S. O'Meara, Harvard College
Observatory (23-cm refractor): Mar. 21.06 UT, 11.4; 31.06,
11.3; Apr. 3.02, 11.0; 10.10, 11.2 (5' fantail near p.a. 45o)
COMET BRADFIELD (1978c)
Further precise positions have been reported as follows:
1978 UT R. A. (1950) Decl. Observer
Feb. 10.66146 19 00 44.87 -45 47 35.8 Austin
10.66563 19 00 46.62 -45 47 20.5 "
11.64965 19 07 13.75 -44 58 06.0 "
11.65313 19 07 15.17 -44 57 52.9 "
14.66215 19 26 37.62 -42 12 12.4 "
14.66632 19 26 39.54 -42 11 59.2 "
16.64271 19 39 05.09 -40 10 45.7 "
25.69856 20 33 12.33 -28 49 56.6 Gilmore
28.75833 20 50 45.72 -24 16 15.1 Herald
28.76736 20 50 48.33 -24 15 19.1 "
Mar. 4.78556 21 13 47.03 -17 49 02.8 "
4.78819 21 13 47.79 -17 48 46.0 "
5.78840 21 19 33.68 -16 08 57.8 "
5.79063 21 19 34.34 -16 08 43.6 "
5.79167 21 19 34.87 -16 08 37.1 "
8.79056 21 37 07.90 -11 03 18.2 "
8.79167 21 37 08.49 -11 03 12.4 "
R. R. D. Austin (Mount John University Observatory) and A. C.
Gilmore (Carter Observatory). Measurer: P. M. Kilmartin.
D. Herald (Kambah, near Canberra). 31-cm reflector.
Total visual magnitude estimates: Mar. 25.52 UT, ~ 5.0 (P. L.
Collins, Tucson, Arizona, 11 x 80 binoculars); 29.47, ~ 5.8 (P.
Maley, Houston, Texas, 13-cm refractor; haze and twilight).
PERIODIC COMET VAN BIESBROECK (1977s)
The following precise positions have been reported:
1977/78 UT R. A. (1950) Decl. m1 Observer
Dec. 17.40999 13 56 25.97 - 7 15 50.8 McCrosky
Mar. 10.83403 15 01 07.50 - 9 26 25.4 17 Seki
12.74792 15 01 30.8 - 9 22 02 17 "
R. E. McCrosky (Harvard College Obs.). Measurer: J. H. Bulger.
T. Seki (Geisei). From Orient. Astron. Assoc. Comet Bull. No. 163.
1978 April 13 (3207) Brian G. Marsden
Read IAUC 3208
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