Central Bureau for Astronomical Telegrams
IAUC 2290: 1970n; 1970o; SN IN Anon GALAXY; N LMC; 1970l; 1970g
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Circular No. 2290
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 CHURYUMOV (1970n)
A cable from Dr. M. U. Sagitov, Sternberg Astronomical Institute,
Moscow, and apparently originating from V. P. Dzhapiashvili,
Abastumani Observatory, reports that a new comet has been discovered
by K. I. Churyumov, as shown below. [We are following the
recent recommendation of IAU Commission 5 concerning the
transliteration of Russian names, cf. Trans. IAU (1970) XIVA, 13. The name
of comet 1969h, discovered by the same observer, should be amended
accordingly.] The comet was said to be diffuse, with condensation,
nothing reported about a tail. Subsequent attempts to observe the
comet elsewhere do not seem to have been successful.
1970 UT R. A. (1950) Decl. m1
Nov. 22.69 17 58.0 - 5 00 8
24.69 17 58.5 - 6 00 7
PERIODIC COMET WOLF-HARRINGTON (1970o)
Dr. Elizabeth Roemer reports that she and R. A. McCallister
have recovered this comet on two plates taken with the Steward
Observatory's 229-cm reflector on Kitt Peak. The comet is well
condensed, but looks nonstellar. It is almost exactly in the
position predicted by G. Sitarski on IAUC 2257.
1970 UT R. A. (1950) Decl. m2
Nov. 25.14057 20 51.68 + 0 39.3 ~21.2
SUPERNOVA IN ANONYMOUS GALAXY
Dr. L. Detre, Konkoly Observatory, Budapest, cables that M.
Lovas has discovered a supernova in an anonymous galaxy at R. A. =
10h45m.6, Decl. = +14o19' (equinox 1950.0). The supernova is 13" east
and l" north of the nucleus, and on November 26 its photographic
magnitude was 16.5.
NOVA IN THE LARGE MAGELLANIC CLOUD
Dr. J. A. Graham, Cerro Tololo Interamerican Observatory,
writes that the nova was first detected on a 4o objective prism
plate obtained with the Curtis Schmidt telescope on November 5.2
UT. A blink comparison with plates taken one month earlier showed
a new emission line object. Visual inspection of an objective
prism plate taken two months earlier confirmed that the object was
new. A direct plate taken with the 152-cm telescope on November
6.1 UT showed that the object was stellar. A 10o objective prism
plate (dispersion 113 A/mm) taken with the Curtis Schmidt on November
6.2 showed that the star had broad emission lines (approximately
50 A wide) of H-beta, H-gamma, H-delta and H-epsilon, bordered on their violet
edges by sharp absorption lines. These were superposed on an
apparently featureless continuum.
PERIODIC COMET ENCKE (1970l)
The following precise positions have been reported:
1970 UT R. A. (1950) Decl. m2 Observer
Nov. 1.73581 23 32 17.21 +28 02 36.6 15 Chernykh
1.74274 23 32 14.85 +28 02 28.3 "
16.75845 22 08 33.02 +20 28 38.9 Milet
16.76607 22 08 30.39 +20 28 19.6 "
21.75383 21 42 35.50 +17 07 29.9 "
21.76145 21 42 32.85 +17 07 35.3 "
N. S. Chernykh (Crimean Astrophysical Observatory). Diffuse, circular;
diameter 3'; starlike eccentric nucleus. Reduced at
I.T.A., Leningrad. Communicated by G. R. Kastel'.
B. Milet (Nice Observatory). Nov. 16: Good, condensed images.
Mr. J. E. Bortle, Stormville, New York, writes that he observed
the comet on Nov. 16.98 as a very large, nebulous mass of
magnitude 9.1. In binoculars the diameter was 8'. On November 7
he had been unable to locate the comet with a 32-cm reflector.
COMET ABE (1970g)
The following precise. positions have been reported:
1970 UT R. A. (1950) Decl. m1 Observer
Oct. 27.38733 16 00 04.99 + 9 51 03.0 7.5 Seki
27.71942 15 59 59.65 + 9 41 35.0 Mrkos
28.38704 15 59 48.76 + 9 22 50.4 Seki
28.38912 15 59 48.68 + 9 22 46.9 "
29.38976 15 59 32.83 + 8 55 12.1 8.4 "
30.73014 15 59 12.72 + 8 19 09.9 Mrkos
31.72432 15 58 58.54 + 7 53 11.0 "
T. Seki (Kochi Observatory). A. Mrkos (Klet Observatory).
1970 December 1 (2290) Brian G. Marsden
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