Central Bureau for Astronomical Telegrams
IAUC 3815: 1983f; SN IN NGC 3106
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Read IAUC 3816
Circular No. 3815
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
COMET IRAS (1983f)
J. Davies, University of Leicester, communicates the
following additional observations obtained with the Infrared
Astronomical Satellite. The comet is fading.
1983 UT R.A. (1950.0) Decl.
May 23.018 9 15.71 -10 48.5
23.083 9 15.74 -10 47.3
23.155 9 15.77 -10 45.8
The following parabolic orbital elements have been derived by
the undersigned from the available semiaccurate positions. The
result is somewhat uncertain, but the ephemeris may help observers
locate the comet. Astrometric observations are desired.
T = 1983 Jan. 20.08 ET Peri. = 224.84
Node = 117.65 1950.0
q = 1.3889 AU Incl. = 152.66
1983 ET R.A. (1950.0) Decl. p r m1
Feb. 15 18 07.72 -43 57.8 1.727 1.439 15.3
25 17 52.09 -49 08.2
Mar. 7 17 19.18 -55 50.1 1.296 1.539 14.9
17 16 02.60 -63 20.3
27 13 24.43 -65 42.6 0.990 1.680 14.7
Apr. 6 11 01.76 -55 33.7
16 9 58.36 -40 44.9 1.093 1.848 15.4
26 9 31.80 -28 28.6
May 6 9 20.38 -19 47.8 1.557 2.034 16.5
16 9 16.20 -13 50.8
26 9 15.95 - 9 44.4 2.137 2.230 17.6
June 5 9 18.02 - 6 51.9
15 9 21.54 - 4 50.0 2.715 2.433 18.5
25 9 25.98 - 3 24.1
July 5 9 30.99 - 2 24.1 3.237 2.638 19.3
SUPERNOVA IN NGC 3106
E. P. Aksenov, Sternberg Astronomical Institute, cables that
Yu. V. Terebizh, Sternberg Crimean Station, reports the discovery
by Metlova of a supernova 11" east and 12" south of the nucleus of
NGC 3106. On Apr. 8.865 UT the photographic magnitude was 16.0.
1983 May 24 (3815) Brian G. Marsden
Read IAUC 3816
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