Central Bureau for Astronomical Telegrams
IAUC 2210: 1969b; (1620); 1970a
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Circular No. 2210
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 KOHOUTEK (1969b)
The following precise positions have been reported:
1969/70 UT R.A. (1950) Decl. Mag. Observer
Dec. 3.38194 18 22 51.48 +28 21 34.3 Seki
9.38819 18 28 28.94 +29 07 48.0 "
Jan. 7.87535 19 06 00.09 +35 50 35.4 "
8.86788 19 07 36.60 +36 10 06.6 12 "
10.88229 19 10 56.30 +36 51 08.6 "
11.87972 19 12 38.77 +37 12 09.4 "
15.87301 19 19 45.31 +38 40 57.2 10 "
15.88056 19 19 46.18 +38 41 04.1 "
18.88264 19 25 28.81 +39 52 57.5 "
19.87865 19 27 26.56 +40 17 44.2 "
31.74630 19 54 28.81 +45 51 34.3 Milet
Feb. 3.74711 20 02 38.02 +47 27 12.5 "
T. Seki (Kochi Observatory).
B. Milet (Nice Observatory).
(1620) GEOGRAPHOS
Mr. M. Antal, Skalnate Pleso Observatory, communicates the
following positions, obtained with the 30-cm f/5 astrograph:
1969 UT R.A. (1950) Decl.
Sept. 8.87500 20 20 37.00 - 7 53 20.2
8.89097 20 20 41.49 - 7 51 46.7
9.84653 20 25 17.55 - 6 22 57.2
9.85347 20 25 19.47 - 6 22 20.8*
9.86181 20 25 21.38 - 6 21 33.3*
9.86875 20 25 23.21 - 6 20 58.8
9.88264 20 25 26.82 - 6 19 44.4
9.88958 20 25 28.53 - 6 19 11.2*
9.89653 20 25 30.45 - 6 18 33.0
9.90347 20 25 32.19 - 6 17 56.2
9.91042 20 25 33.86 - 6 17 20.7*
* Measurement difficult.
COMET DAIDO-FUJIKAWA (1970a)
Further precise positions have been reported as follows:
1970 UT R.A. (1950) Decl. Mag. Observer
Feb. 2.85417* 19 29 11.67 + 0 52 43.6 7.0 Urata
4.84635 19 41 44.65 - 1 13 43.1 Yumoto
6.54965 19 53 53.05 - 3 16 14.1 Giclas
6.85197** 19 56 11.99 - 3 39 28.9 6 Urata
T. Urata (Nihondaira Observatory). * Tail 0.5o. ** Tail 1.5o.
T. Yumoto (Tachibana Observatory). Long. = -138o25', Lat. = +35o01'.
H. L. Giclas (Lowell Observatory). 33-cm photographic telescope.
Dr. Elizabeth Roemer, Lunar and Planetary Laboratory, reports
that on Feb. 7.5 at least 4o of tail could be seen in binoculars,
even though the sky was getting bright in the dawn.
New elements from 26 observations Jan. 28 to Feb. 7:
T = 1970 Feb. 15.8055 ET Peri. = 266.6514
Node = 29.9154 1950.0
q = 0.065740 AU Incl. = 100.1658
1970 TT R. A. (1950) Decl. Delta r Elong. Mag.
Feb. 20 22 38.34 - 3 34.4
21 22 41.65 - 1 16.2 1.162 0.279 11.7 2.5
22 22 44.49 + 0 48.9
23 22 47.02 + 2 43.4 1.218 0.356 14.3 4.2
Feb. 28 22 57.16 +10 25.9
Mar. 5 23 05.33 +16 14.0 1.470 0.673 22.7 8.8
10 23 12.57 +20 55.1
15 23 19.25 +24 52.5 1.692 0.934 27.7 11.2
20 23 25.52 +28 19.6
25 23 31.47 +31 24.9 1.890 1.164 31.6 12.9
30 23 37.13 +34 14.1
Apr. 4 23 42.53 +36 51.1 2.067 1.374 35.1 14.1
9 23 47.68 +39 18.7
14 23 52.56 +41 38.9 2.224 1.570 38.6 15.2
19 23 57.16 +43 53.3
24 0 01.46 +46 02.9 2.364 1.755 42.3 16.0
29 0 05.45 +48 08.9
May 4 0 09.08 +50 11.8 2.487 1.931 46.2 16.8
Mag. = 10.5 + 5 log Delta + 15 log r
1970 February 13 (2210) Brian G. Marsden
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