Central Bureau for Astronomical Telegrams
IAUC 7248: Prob. NEW Sats OF URANUS
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Circular No. 7248
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Mailstop 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
[email protected] or FAX 617-495-7231 (subscriptions)
[email protected] or [email protected] (science)
URL https://cfa-www.harvard.edu/iau/cbat.html ISSN 0081-0304
Phone 617-495-7244/7440/7444 (for emergency use only)
PROBABLE NEW SATELLITES OF URANUS
There follow Palomar 5-m observations in August by B. Gladman,
Observatoire de la Cote d'Azur; and P. Nicholson and J. Burns, Cornell
University, of the probable satellites S/1999 U 1 and U 2, together
with July Mauna Kea observations by J. J. Kavelaars et al. (see IAUC 7230)
and August Palomar observations of a probable new satellite S/1999 U 3:
1999 UT R.A. (2000) Decl. R
Aug. 8.34182 21 11 43.76 -16 54 26.2 23.2 S/1999 U 1
9.32396 21 11 34.45 -16 55 09.2 23.1
Aug. 9.27571 21 10 12.46 -17 06 25.9 24.2 S/1999 U 2
9.34726 21 10 11.76 -17 06 28.9 23.9
July 18.52608 21 12 55.18 -16 47 38.0 S/1999 U 3
18.58036 21 12 54.68 -16 47 40.2
Aug. 8.35032 21 09 39.01 -17 01 47.8
9.30043 21 09 29.88 -17 02 28.0 23.0
The following ephemerides, by the undersigned, are from direct, apocentric,
uranicentric orbits having e = 0.4. The possibility that some or all of
the objects are centaurs can still not be excluded.
1999 TT R. A. (2000) Decl. Delta r_U Elong. dR.A. dDecl.
Aug. 30 21 08.41 -17 09.4 18.990 0.155 158.2 1579+ 578+
Sept. 9 21 07.04 -17 15.4 19.067 0.155 148.2 1579+ 563+
19 21 05.88 -17 20.4 19.170 0.155 138.2 1576+ 548+
29 21 04.95 -17 24.4 19.295 0.155 128.1 1570+ 533+
Oct. 9 21 04.31 -17 27.0 19.438 0.155 118.1 1561+ 518+
Aug. 30 21 06.95 -17 21.4 18.921 0.061 157.8 329+ 144-
Sept. 9 21 05.56 -17 27.7 19.002 0.061 147.8 299+ 176-
19 21 04.35 -17 33.0 19.108 0.060 137.7 268+ 206-
29 21 03.40 -17 37.1 19.236 0.059 127.7 236+ 233-
Oct. 9 21 02.73 -17 39.9 19.383 0.058 117.7 203+ 259-
Aug. 30 21 06.36 -17 16.8 18.980 0.022 157.7 180- 136+
Sept. 9 21 05.06 -17 23.1 19.065 0.019 147.7 125- 98+
19 21 03.99 -17 28.9 19.173 0.015 137.7 46- 42+
29 21 03.18 -17 33.7 19.298 0.012 127.7 46+ 26-
Oct. 9 21 02.62 -17 36.9 19.434 0.012 117.7 109+ 75-
(C) Copyright 1999 CBAT
1999 September 4 (7248) Brian G. Marsden
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