Central Bureau for Astronomical Telegrams
IAUC 3682: N Aql 1982; TIME ADJUSTMENT ON 1982 JUNE 30; 1982b, 1982c
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Read IAUC 3683
Circular No. 3682
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
NOVA AQUILAE 1982
L. Rosino, T. Iijima and S. Ortolani, Asago Astrophysical
Observatory, telex: "Spectroscopic observations of this object at
Asiago during the first half of March confirm its unusual character.
The emission spectrum shows diffuse Balmer lines (halfwidth ~ 2000
km/s) with strong central cores. H-beta and H-gamma are bordered shortward
by a hint of very broad P-Cyg absorption, giving a mean radial velocity
of ~ -2800 km/s. The other lines, all in emission, are due
to He I (from 706 to 447 nm), He II 469 nm, [O I] 630-636 nm, N III
(a broad blend at 464 nm) and perhaps some very weak [Fe II] lines.
The strongest emission lines are wide, with a structure similar to
that observed in the Balmer lines. The magnitude was estimated
visually as ~ 14 on Mar. 11, representing a drop of 7-8 mag since
the end of January. We suspect that the nova, which by Mar. 16 had
not yet developed a nebular spectrum, may be experiencing a deep
secondary minimum, from which it could recover during the next few
weeks; there is perhaps some similarity to DQ Her in 1935."
TIME ADJUSTMENT ON 1982 JUNE 30
The Bureau International de 1'Heure informs us that a positive
leap second will occur such that the sequence of UTC second markers
will be: 1982 June 30d23h59m59s, 30d23h59m60s, July 1d00h00m00s.
From 1981 July 1 to 1982 June 30 UTC-TAI = -20s; beginning 1982
July 1 UTC-TAI = -21s.
PERIODIC COMET DU TOIT-HARTLEY (1982b, 1982c)
Continuation to the ephemerides on IAUC 3668:
Comet 1982b Comet 1982c
1982 ET R. A. (1950) Decl. R. A. (1950) Decl. Delta r
Apr. 11 16 30.97 -34 11.8 16 35.98 -34 09.2
21 17 00.07 -34 59.0 17 04.91 -34 53.1 0.302 1.223
May 1 17 18.95 -34 53.6 17 23.61 -34 46.6
11 17 28.22 -34 13.3 17 32.70 -34 07.1 0.335 1.296
21 17 29.79 -33 09.9 17 34.03 -33 05.6
31 17 26.50 -31 51.4 17 30.40 -31 49.2 0.401 1.402
June 10 17 21.58 -30 26.6 17 25.04 -30 26.2
20 17 17.40 -29 04.3 17 20.39 -29 05.0 0.518 1.530
1982 March 26 (3682) Brian G. Marsden
Read IAUC 3683
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