Central Bureau for Astronomical Telegrams
IAUC 3963: Prob. SN IN NGC 1559; Prob. N IN Vul; V1343 Aql; IAUC 3962
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Read IAUC 3964
Circular No. 3963
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Postal Address: Central Bureau for Astronomical Telegrams
Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
TWX 710-320-6842 ASTROGRAM CAM Telephone 617-495-7244/7440/7444
PROBABLE SUPERNOVA IN NGC 1559
R. Evans, Maclean, N.S.W., reports his discovery of a probable
supernova of mag 13.5 on July 27.82 UT 25" west and 10" south
of the nucleus of NGC 1559 (R.A. = 4h17m0, Decl. = -62deg55', equinox
1950.0). Confirmatory observations were made on July 28.1 by D.
Overbeek (Edenvale, South Africa), on July 28.8 by Evans, and also
on July 28.8 by G. Thompson (Brisbane, Queensland), who gave the
offset as 50" west, 5" north, and the magnitude as 13.0.
PROBABLE NOVA IN VULPECULA
H. Kosai, Tokyo Astronomical Observatory, telexes that Wakuda
has discovered a stellar object as follows:
1984 UT R.A. (1950.0) Decl. mpv
July 27.711 19 23.9 +27 16 9.2
The observation was made with a 35-mm camera and 200-mm lens and
Tri-X film with a green filter. The appearance was essentially
identical on July 28.726 UT, and the object was not present down
to mag 12 on July 24.679. A 4-degree-objective-prism spectrum obtained
by W. Takana, T. Watanabe and others with the Kiso Schmidt telescope
on July 29.667 showed strong emission from H-alpha and H-beta.
C.-Y. Shao, Center for Astrophysics, photographed the object
at mpg = 8.9 with the Damon camera at Oak Ridge on July 29.162 UT
and noted that a Damon patrol plate on July 24.232 failed to record
any object brighter than mag 14. Visual magnitude estimates:
July 29.38 UT, 8.9 (C. S. Morris, Tujunga, CA); 29.5, 9.0 (M.
Huruhata, near Tokyo, Japan). The object appears to be in Vulpecula,
near the border with Cygnus (not in Sagitta, as was stated
in the message to telegram subscribers).
V1343 AQUILAE
Visual magnitude estimates by M. Verdenet, Bourbon-Lancy,
France: June 16.9 UT, 14.6; 22.9, 15.2; 26.9, 15.7; July 3.9, 15.4.
IAUC 3962
The above number was inadvertently omitted from the printed
copies of the July 23 Circular.
1984 July 30 (3963) Brian G. Marsden
Read IAUC 3964
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