Central Bureau for Astronomical Telegrams

Central Bureau for Astronomical Telegrams -- Image credits

IAUC 3548: SN IN NGC 1316; Prob. N IN Cyg; N Sgr 1980; BD +15 4264; SN IN NGC 6946

The following International Astronomical Union Circular may be linked-to from your own Web pages, but must not otherwise be redistributed (see these notes on the conditions under which circulars are made available on our WWW site).

Read IAUC 3547 SEARCH Read IAUC 3549
IAUC number 

                                                  Circular No. 3548
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 617-864-5758


SUPERNOVA IN NGC 1316
     J. Maza, Department of Astronomy, University of Chile, telexes
that M. Wischnjewsky has discovered a supernova in NGC 1316 = Fornax
A (R.A. = 3h20m.8, Decl. = -37o23', equinox 1950.0) on a plate taken by
Maza on Nov. 30.181 UT, at which time the photographic magnitude
was 14.0.  The object, which is located 220" east and 20" south of
the galaxy's nucleus, had brightened to mpg = 12.5 on Dec. 7.115 UT.


PROBABLE NOVA IN CYGNUS
     A. C. Porter, Harvard-Smithsonian Center for Astrophysics, assisted
by D. Danby and G. Wright, has measured the following precise
position from a plate taken by Danby at Harvard University on
Dec. 7: R.A. = 21h40m46s.0, Decl. = +31o13'45" (equinox 1950.0).

     H. Kosai, Tokyo Astronomical Observatory, communicates the
following photoelectric observations, obtained on Dec. 8.5 UT by K.
Ishida, K. Hamajima and T. Mikami at the Okayama Station: V = 10.09,
B-V = +1.67, V-R = +1.51, V-I = +3.28 (Johnson system).


NOVA SAGITTARII 1980
     D. di Cicco, Sky and Telescope, communicates the following
magnitude estimates, derived by him from Tri-X exposures obtained by B.
Mayer, Los Angeles: Oct. 28.105 UT (prediscovery), ~ 8.6; Nov.
2.094, 9.5+; 4.096, ~ 10; 8.101, 10+.  No obvious image can be detected
on an Oct. 11.16 UT exposure with limiting magnitude 10+.


BD +15 4264
     J. C. Ralph, Department of Physics, Trent University, Oshawa,
Ontario, writes that examination of about a dozen wide-field
photographs taken over an interval of about one month suggests that the
star BD +15 4264 (R.A. = 20h46m41s, Decl. = +16o02'.6, equinox 1950.0) was
at least one magnitude fainter than normal (mpg ~ 11.2) on two
exposures taken around Sept. 7.17 UT.


SUPERNOVA IN NGC 6946
     Visual magnitude estimates: Nov. 18.987 UT, 11.9 (J. DeYoung,
Palmyra, VA); Dec. 4.75, 12.6 (S. Baroni and M. Cavagna, Milan).


1980 December 11               (3548)              Brian G. Marsden

Read IAUC 3547 SEARCH Read IAUC 3549

Our Web policy. Index to the CBAT/MPC/ICQ pages.

Valid HTML 4.01!