Central Bureau for Astronomical Telegrams
IAUC 5113: 1990 SQ; AX Per
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Read IAUC 5114
Circular No. 5113
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Postal Address: Central Bureau for Astronomical Telegrams
Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Telephone 617-495-7244/7440/7444 (for emergency use only)
TWX 710-320-6842 ASTROGRAM CAM EASYLINK 62794505
MARSDEN or GREEN@CFA.BITNET MARSDEN or GREEN@CFAPS2.SPAN
1990 SQ
Further observations from D. Balam and J. Tatum at Victoria:
1990 UT R.A. (1950) Decl.
Sept.27.21979 21 50 53.04 -18 57 20.2
27.25573 21 50 48.05 -18 55 47.5
30.25174 21 44 31.56 -16 44 00.5
Oct. 6.26667 21 33 50.36 -11 59 17.7
Improved orbital elements from observations Sept. 23-Oct. 6:
T = 1990 Nov. 28.103 ET Peri. = 51.985
e = 0.44686 Node = 358.205 1950.0
q = 1.10367 AU Incl. = 17.440
a = 1.99528 AU n = 0.349703 P = 2.82 years
1990 ET R.A. (1950) Decl. Delta r V
Oct. 6 21 34.26 -12 12.0 0.334 1.241 13.4
11 21 27.38 - 8 02.1
16 21 22.47 - 3 45.9 0.335 1.197 13.6
21 21 19.51 + 0 32.1
26 21 18.41 + 4 48.5 0.344 1.161 13.8
31 21 19.03 + 9 01.1
Nov. 5 21 21.23 +13 08.7 0.358 1.132 13.9
10 21 24.92 +17 10.3
15 21 30.06 +21 05.8 0.375 1.113 14.1
20 21 36.64 +24 55.2
25 21 44.72 +28 38.9 0.393 1.104 14.2
AX PERSEI
Visual magnitude estimates (cf. IAUC 4994): Mar. 31.84 UT, 9.8
(P. Schmeer, Bischmisheim, Germany); May 2.12, 10.0 (Schmeer); 30.1,
9.8 (A. Mizser, Budapest, Hungary); July 6.1, 10.1 (J. Bortle,
Stormville, NY); Aug. 1.09, 10.3 (Schmeer); 26.38, 10.4 (P. Sventek,
Houston, TX); Oct. 8.93, 10.6 (A. Pereira, Cabo da Roca, Portugal);
10.82, 10.5 (E. Schweitzer, Strasbourg, France).
1990 October 11 (5113) Daniel W. E. Green
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