Jupiter's new satellites S/2003 J22 and S/2003 J23

S/2003 J22 and S/2003 J23

In addition to the 21 new satellites discovered and announced in 2003 (S/2003 J1 to S/2003 J21); The satellites S/2003 J22 and S/2003 J23 were first observed in 2003 but only confirmed as satellites of Jupiter in early 2004. See the announcements below. S/2003 J22 and J23 are about 2 kilometers in diameter (1.2 miles) and are both in retrograde orbits similar to other known satellites recently discovered around Jupiter.

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These figures show discovery images of the new Jupiter satellite S/2003 J23 taken about 39 minutes apart on UT February 6, 2003 with the Canada-France-Hawaii Telescope. The motion of the satellite clearly stands out compared to the steady state background of stars and galaxies. Jupiter is not in the field, but is about one degree to the Northwest of these images. Images on the right are the same as the left accept the satellite has been identified by a red circle.

Circular No. 8281
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION

New Jupiter Satellite S/2003 J 23
     Further to IAUC 8276, the discovery of a new satellite of
Jupiter has been reported on CCD images taken with three telescopes
at Mauna Kea by a team led by S. S. Sheppard.  Astrometry,
preliminary orbital elements by B. G. Marsden, and an ephemeris
appear on MPEC 2004-B81 (e = 0.31, i = 149 deg, P = 759 days, H =
16.7).

                      (C) Copyright 2004 CBAT
2004 February 4                (8281)            Daniel W. E. Green


Circular No. 8276
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION

New Jupiter Satellite S/2003 J 22
     Further to IAUC 8138, the discovery of a new satellite of
Jupiter has been reported on CCD images taken with the 3.6-m
Canada-France-Hawaii Telescope and the 2.2-m University of Hawaii
reflector by teams led by S. S. Sheppard and by B. Gladman.
Astrometry, preliminary orbital elements by B. G. Marsden, and an
ephemeris appear on MPEC 2004-B41 (e = 0.23, i = 151 deg, P = 640
days, H = 16.4).

                      (C) Copyright 2004 CBAT
2004 January 25                (8276)            Daniel W. E. Green

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Learn about all the new Jupiter irregular satellites of 2003.

Back to The Jupiter Satellite Page.