Central Bureau for Astronomical Telegrams
IAUC 4719: 1989 AZ
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Read IAUC 4720
Circular No. 4719
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
1989 AZ
Precise positions measured by C. S. Shoemaker from films taken by
E. M. Shoemaker and herself with the 0.46-m Palomar Schmidt:
1989 UT R.A. (1950) Decl. Mag.
Jan. 8.49496 10 04 29.96 +20 41 44.8 17
9.45989 9 55 58.47 +19 11 23.0
13.42361 9 27 17.50 +13 56 04.8
13.50850 9 26 44.48 +13 50 14.1
14.53750 9 20 41.93 +12 42 44.9
Orbital elements by the undersigned from the above observations:
T = 1988 Nov. 18.798 ET Peri. = 111.438
e = 0.48082 Node = 295.238 1950.0
q = 0.87324 AU Incl. = 12.057
a = 1.68195 AU n = 0.451842 P = 2.18 years
1989 ET R.A. (1950) Decl. Delta r V
Jan. 14 9 23.84 +13 17.8 0.137 1.108 16.4
16 9 12.95 +11 16.2
18 9 03.57 + 9 32.4 0.160 1.136 16.6
20 8 55.44 + 8 04.2
22 8 48.37 + 6 49.4 0.185 1.164 16.8
24 8 42.21 + 5 46.2
26 8 36.81 + 4 52.9 0.213 1.192 17.1
28 8 32.10 + 4 08.2
30 8 27.98 + 3 30.9 0.243 1.221 17.5
Feb. 1 8 24.39 + 2 59.9
3 8 21.29 + 2 34.3 0.275 1.250 17.9
5 8 18.62 + 2 13.4
7 8 16.34 + 1 56.5 0.308 1.279 18.2
9 8 14.44 + 1 43.1
11 8 12.87 + 1 32.6 0.344 1.308 18.6
13 8 11.62 + 1 24.6
15 8 10.66 + 1 18.7 0.381 1.337 18.9
17 8 09.97 + 1 14.7
19 8 09.52 + 1 12.1 0.421 1.366 19.2
21 8 09.30 + 1 10.9
23 8 09.29 + 1 10.7 0.462 1.395 19.5
1989 January 17 (4719) Brian G. Marsden
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