Central Bureau for Astronomical Telegrams
IAUC 3445: 1980 AA; Corr
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Read IAUC 3446
Circular No. 3445
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
1980 AA
The following precise positions have been reported:
1980 UT R. A. (1950) Decl. Mag. Observer
Jan. 16.17083 7 15 00.42 +27 04 00.2 15.5 Giclas
16.92083 7 21 17.96 +25 58 27.3 Jensen
16.93472 7 21 24.40 +25 57 15.9 "
16.95000 7 21 31.65 +25 55 55.5 "
H. L. Giclas (Lowell Observatory, Anderson Mesa Station). 0.3-m
photographic telescope. Measurer: E. Bowell.
K. S. Jensen (Copenhagen Observatory, Brorfelde Station). 0.5-m
Schmidt telescope. Exposures 4, 4 and 20 min.
The following orbital elements have been determined by the
undersigned from the observations Jan. 13-16. Although the Jan. 13
observation is only approximate, the orbit seems well defined, and
the ephemeris should help observers locate the object.
T = 1980 Jan. 9.635 ET
Peri. = 168.374 e = 0.49870
Node = 298.559 1950.0 a = 2.11628 AU
Incl. = 4.604 n = 0.320144
q = 1.06088 AU P = 3.08 years
1980 ET R. A. (1950) Decl. Delta r Mag.
Jan. 14 6 55.64 +30 08.0 0.080 1.062 15.4
16 7 13.45 +27 19.2
18 7 30.11 +24 25.1 0.082 1.065 15.3
20 7 45.49 +21 30.8
22 7 59.53 +18 41.0 0.087 1.071 15.3
24 8 12.26 +15 59.3
26 8 23.74 +13 28.3 0.094 1.078 15.6
28 8 34.05 +11 09.6
30 8 43.28 + 9 03.9 0.104 1.088 15.9
Mag. = 20.5 + 5 log Delta + 5 log r + 0.023 (phase angle)
CORRIGENDUM
On IAUC 3428, V471 Tauri, line 8 from foot: for 2 x 10**5 K
read 2 x 10**4 K.
1980 January 18 (3445) Brian G. Marsden
Read IAUC 3446
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