Central Bureau for Astronomical Telegrams
IAUC 3875: 1983 SA; SN IN IC 1731
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Read IAUC 3876
Circular No. 3875
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
1983 SA
P. Wild, Astronomical Institute, Berne, communicates the
following additional precise positions:
1983 UT R.A. (1950.0) Decl.
Oct. 1.89427 22 50 24.55 +14 07 29.4
2.97153 22 48 56.18 +14 40 39.2
3.91458 22 47 44.47 +15 08 14.9
The following orbital elements, by the undersigned, satisfy
the five available positions within 0"3. The formal errors are
small, and the cometary nature of the orbit seems inescapable,
although e and a may be somewhat smaller than shown here.
T = 1983 July 26.09 ET
Peri. = 316.52 e = 0.7128
Node = 350.08 1950.0 a = 4.2000 AU
Incl. = 30.74 n = 0.11451
q = 1.2063 AU P = 8.61 years
1983 ET R.A. (1950.0) Decl. p r m1
Sept. 3 0 14.42 -16 03.3 0.321 1.309 13.5
8 23 53.73 - 8 42.6
13 23 35.35 - 2 03.2 0.359 1.364 13.5
18 23 19.67 + 3 36.6
23 23 06.80 + 8 12.9 0.434 1.427 14.2
28 22 56.61 +11 51.4
Oct. 3 22 48.91 +14 41.6 0.536 1.496 14.9
8 22 43.42 +16 53.7
13 22 39.90 +18 36.6 0.659 1.571 15.6
18 22 38.09 +19 57.5
23 22 37.72 +21 02.1 0.796 1.649 16.2
28 22 38.60 +21 54.6
Nov. 2 22 40.54 +22 38.2 0.944 1.730 16.7
SUPERNOVA IN IC 1731
Wild also reports his discovery of a supernova, of mpg 14, at
R.A. = 1h47m23s74, Decl. = +26deg57'03"9 (equinox 1950.0), 9" east and
10" north of the nucleus of IC 1731. The discovery was made on Oct. 1
and confirmed on Oct. 3.
1983 October 5 (3875) Brian G. Marsden
Read IAUC 3876
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