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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.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
BMARSDEN@CFA.HARVARD.EDU or DGREEN@CFA.HARVARD.EDU (science)
URL http://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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