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IAUC 4511: 1987N; V482 Cyg; N Vul 1987

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                                                  Circular No. 4511
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


SUPERNOVA 1987N IN NGC 7606
     R. H. McNaught, Siding Spring Observatory, reports that R.
Evans, Hazelbrook, N.S.W., has discovered a supernova in NGC 7606
while visiting the Siding Spring Observatory.  Visual magnitude
estimates: Dec. 14.45 UT, 13.8 (Evans); 14.45, 13.8 (T. Cragg);
14.50, 14.0 (McNaught).  Positions from the telescope encoders
have been measured as follows: R.A. = 23h16m28s.0, Decl. = -8 45'07"
(equinox 1950.0), offset from nucleus 16".3 west, 27".0 north (S.
Lee, Anglo-Australian Telescope); end figures  28s.1, 00", 17", 29"
(G. Mackie, 2.3-m Australian National University telescope).
Supernova 1965M appeared in this same galaxy (IAUC 1934).


V482 CYGNI
     G. M. Hurst, Basingstoke, England, reports a fading of the R
RCrB-type star V482 Cyg (R.A. = 19h57m.8, Decl. = +33 50', equinox 1950.0).
Visual magnitude estimates: Oct. 29.93 UT, 10.9; Nov. 10.84, 11.2;
12.82, 11.3; 14.79, 11.3; 19.84, 11.5; 28.85, 11.6: Dec. 9.82,
11.8; 10.78, 12.0; 13.78, 12.5.  The last fading was in 1976 (cf.
IAUC 2961).


NOVA VULPECULAE 1987
     Y. Andrillat, Laboratoire d'Astronomie, Montpellier, telexes:
"Spectrograms (range 365-502 nm, dispersion 8 nm/mm) obtained on
Dec. 10.79, 10.80 and 10.81 UT at Haute Provence are characterized
by the presence of H (H beta-H15), Fe II (multiplets 27, 28, 37, 38,
42), Ti II (13, 14, 19, 31, 34, 41), N II (5), Cr II (44) and Ca
II (H, K).  Weaker lines of He I 447.1 nm and Mg II 448.1 nm are
also present.  The interstellar Ca lines are strong.  All the
emissions are flanked by two blueshifted absorptions with mean
radial velocity -1240 km/s (strong) and -730 km/s (moderate and
diffuse).  The total width of the emission lines is about 1450 km/s."
     The following photoelectric photometry has been reported:
Dec. 7.99 UT, V = 7.67, B-V = +0.59 (R. E. Zissell, Williston
Observatory); 10.722, V = 7.47, B-V = +0.55, U-B = -1.02 (R. Monella,
Covo, Italy); 12.719, V = 7.54, B-V = +0.61, U-B = -0.97 (Monella);
13.721, V = 7.57, B-V = +0.65, U-B = -0.95 (Monella).


1987 December 14               (4511)              Brian G. Marsden

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