Central Bureau for Astronomical Telegrams
IAUC 3045: N IN LMC; 3U 0042+32; 1974 XII; 1976e; 1975e; P/ASHBROOK-JACKSON; 1976 WA
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Read IAUC 3046
Circular No. 3045
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
NOVA IN LARGE MAGELLANIC CLOUD
J. A. Graham, Cerro Tololo Interamerican Observatory, communicates
that he has discovered a nova in the Large Magellanic Cloud
on a plate taken by Rojas as shown below. The object is approximately
7' southeast of HV 12080.
1977 UT R. A. (1975) Decl. Mag.
Feb. 26 6 05.9 -68 38 13
3U 0042+32
R. Dower, G. Clark, G. Jernigan and S. Rappaport, Massachusetts
Institute of Technology, report that the SAS-3 Group has
measured the position of the mid-latitude x-ray source 3U 0042+32
during the recent outburst of flaring activity reported by Ricketts
and Cooke (IAUC 3039). The coordinates, derived from observations
made between Feb. 25.0 and 26.0 UT, are R.A. = 0h42m09s, Decl. = +32o44'.9
(equinox 1950.0). The 95-percent error circle has a radius of 1'.
In the energy range from 2 to 10 keV the average intensity was 2.4
percent of the Crab Nebula, and the spectrum was comparable in
hardness.
COMET VAN DEN BERGH (1974 XII)
The following precise position was obtained by R. M. West with
the 100-cm Schmidt telescope at the European Southern Observatory:
1976 UT R. A. (1950) Decl. m2
Oct. 31.25917 4 42 40.30 -10 21 10.9 ~20.0
PERIODIC COMET D'ARREST (1976e)
The following precise positions have been reported:
1976 UT R. A. (1950) Decl. m1 Observer
July 7.21788 19 09 59.83 +21 47 51.3 Schwartz
28.27264 20 10 05.13 +11 43 05.8 "
Aug. 21.12841 22 37 09.41 -25 02 13.0 6.0 Debehogne
21.18018 22 37 29.59 -25 06 26.6 "
22.14957 22 44 04.82 -26 25 49.4 "
22.19701 22 44 22.95 -26 29 37.3 "
23.13957 22 50 41.40 -27 42 21.9 "
23.18753 22 50 59.31 -27 46 00.0 "
G. Schwartz (Harvard College Observatory, Agassiz Station). 155-cm
reflector. Measurer: J. H. Bulger.
H. Debehogne and G. Roman (European Southern Observatory). 40-cm
f/10 double astrograph.
PERIODIC COMET SMIRNOVA-CHERNYKH (1975e)
E. I. Kazimirchak-Polonskaya, Institute for Theoretical Astronomy,
Leningrad, communicates the following precise positions, obtained
by N. S. Chernykh at the Crimean Astrophysical Observatory:
1976 UT R. A. (1950) Decl.
May 23.85619 13 29 09.81 - 2 48 55.6
25.83989 13 28 33.62 - 2 49 49.2
28.82256 13 27 46.10 - 2 51 58.3
29.84943 13 27 31.70 - 2 52 57.0
June 20.84178 13 26 31.73 - 3 38 24.4
PERIODIC COMET ASHBROOK-JACKSON
E. I. Kazimirchak-Polonskaya also provides the following
predicted elements, resulting from a differential correction based on
140 observations 1948-1970, perturbations by all nine planets being
considered. Her ephemeris is very similar to that on IAUC 3021.
T = 1978 Aug. 19.8844 ET Epoch = 1978 Aug. 20.0 ET
Peri. = 349.0145 e = 0.399846
Node = 2.0589 1950.0 a = 3.806031 AU
Incl. = 12.5253 n = 0.1327381
q = 2.284205 AU P = 7.425 years
1976 WA
The following precise positions were measured by R. M. West
from plates taken by H.-E. Schuster and G. and O. Pizarro with the
100-cm Schmidt telescope at the European Southern Observatory:
1976 UT R. A. (1950) Decl.
Dec. 11.09736 2 20 32.37 -29 54 10.8
11.11121 2 20 33.01 -29 53 48.8
12.10571 2 21 24.08 -29 27 16.3
12.12649 2 21 24.97 -29 26 44.1
1977 March 4 (3045) Brian G. Marsden
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