Central Bureau for Astronomical Telegrams
IAUC 4173: 1986A; 1982i; Corrs
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Circular No. 4173
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 1986A IN NGC 3367
R. Evans, Maclean, N.S.W., reports his discovery of a supernova
in NGC 3367 (R.A. = 10h44m0, Decl. = +14deg01', equinox 1950.0), with
mv = 14.0 on Feb. 4.6 UT. M. P. Candy, Perth Observatory, reports
photographic confirmation, and notes that the object is 25" east and
3" north of the galaxy's nucleus.
PERIODIC COMET HALLEY (1982i)
T. le Bertre and N. Epchtein, European Southern Observatory,
report the following infrared magnitudes obtained with the 1-m reflector
at La Silla: Jan. 22.88 UT, J = 5.10, H = 4.84, K = 4.47, L = 1.41,
M = 0.54; Jan. 23.88, J = 5.27, H = 4.92, K = 4.65, L = 1.44, M = 0.0;
Jan. 25.88, M = -0.67, N = -3.85 +/- 0.10, [8.2 microns] = -3.18 +/- 0.10,
[9.8 microns] = -3.86 +/- 0.10, [12.2 microns] = -4.21 +/- 0.15;
all errors are +/- 0.05, except where noted. All observations were
made using a 30" aperture and 30" beamswitching.
Ephemeris continuation from the elements on IAUC 4156:
1986 ET R.A. (1950.0) Decl. p r m1
Feb. 19 20 43.81 -13 07.0 1.448 0.623 3.3
24 20 35.15 -14 38.2
Mar. 1 20 26.55 -16 18.8 1.267 0.723 3.5
6 20 17.59 -18 12.9
11 20 07.53 -20 27.1 1.037 0.858 3.6
16 19 55.18 -23 11.8
21 19 38.49 -26 42.5 0.785 1.008 3.5
26 19 13.62 -31 20.5
31 18 32.64 -37 24.1 0.549 1.162 3.2
Further total visual magnitude estimates (all in strong
twilight): Jan. 26.09 UT, 4.7 (C. E. Spratt, Victoria, BC, 11x80
binoculars; tail 1.0 deg in p.a. 50); 27.06, 3.8 (R. Keen, Mt. Thorodin,
CO, 8x40 binoculars; 0.7 deg tail in p.a. 60); 28.10, 3.8 (A. Hale,
Castaic, CA, 10x50 binoculars).
CORRIGENDA
IAUC 4158, Pluto, line 12. For 90, 2353 read 90, 2639.
IAUC 4162, Periodic Comet Halley (1982i), line 9. For the H2O
lines read the two lines.
1986 February 5 (4173) Daniel W. E. Green
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