Central Bureau for Astronomical Telegrams
IAUC 4260: 1986L; N Cyg 1986; 1986J; 1986l
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Read IAUC 4261
Circular No. 4260
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 1986L IN NGC 1559
R. Evans, Hazelbrook, N.S.W., reports his discovery of another
supernova in NGC 1559 (he also discovered SN 1984J in this galaxy;
cf. IAUC 3963). SN 1986L is located 50" due west of the galaxy's
nucleus (R.A. = 4h17m0, Decl. = -62deg55', equinox 1950.0). Evans estimated
mv = 13.5 on Oct. 7.6 UT, and mv [15.5 on Oct. 2. Confirmation has
been made by R. McNaught, T. Cragg, and G. Thompson.
NOVA CYGNI 1986
Y. Andrillat, Universite des Sciences et Techniques du
Languedoc, Montpellier, and L. Houziaux, Universite de Liege,
communicate: "Spectra taken Sept. 11.8 UT at Observatoire de Haute-
Provence show the line profiles as having a strong emission component
flanked by two violet displaced absorptions: -1600 km/s (strong)
and -650 km/s (moderate). The mean full-width of the emission for H-beta,
H-gamma, and H-delta is 2000 km/s, and the Balmer decrement was steep.
We confirm the presence of previously observed multiplets (IAUC
4246). On Sept. 14.8, the most prominent features seen over 720-
1040 nm are O I (844.6 nm), forming a wide blend with the Ca II
triplet. Other conspicuous lines are 777.2 (O I), 821.1 (N I + O
I), 771.2 (Fe II), and 940 nm (C I); [N I] is present at 1039.5 nm.
The only H lines identified on Sept. 14.8 are P7, P8, and P9."
Further visual magnitude estimates (cf. IAUC 4259) by M. V.
Zanotta, Milan, Italy: Sept. 21.81 UT, 10.5; 29.84, 10.5.
SUPERNOVA 1986J IN NGC 891
A. Wehrle, University of California at Los Angeles, reports
that additional prediscovery observations (cf. IAUC 4258) of this
object were obtained with the Very Large Array as follows: 1984
Dec. 6 (flux density 65 mJy at 6 cm), 1985 June 7 (58 mJy at 2 cm),
and 1986 May 1 (128 mJy at 6 cm).
COMET WILSON (1986l)
Further total visual magnitude estimates: Sept. 21.78 UT, 10.7
(M. V. Zanotta, Milan, Italy, 0.30-m reflector); 29.19, 11.7 (C. S.
Morris, Whitaker Peak, CA, 0.26-m reflector; 3' tail in p.a. 80 deg);
Oct. 2.90, 10.8 (J.-C. Merlin, Le Creusot, France, 0.15-m refl.);
4.15, 11.2 (Morris); 5.26, 11.2 (Morris, Lockwood Valley, CA).
1986 October 7 (4260) Daniel W. E. Green
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