Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
New postal address: Hoffman Lab 209; Harvard University;
20 Oxford St.; Cambridge, MA 02138; U.S.A.
CBATIAU en EPS.HARVARD.EDU ISSN 0081-0304
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S/2011 J 1 AND S/2011 J 2
As first announced on CBET 3002, S. S. Sheppard, Department of Terrestrial Magnetism, Carnegie Institution of Washington, reports the discovery of two new satellites of Jupiter on CCD images obtained with the Magellan-Badde 6.5-m telescope at Las Campanas Observatory. S/2011 J 1 was found at mag 23.7 on images taken on 2011 Sept. 27.3-27.4 UT; orbital elements by G. V. Williams (cf. MPEC 2012-B97) include i = 163 deg, e = 0.30, and P = 0.049 yr. S/2011 J 2 was found at mag 23.5 on images taken on 2011 Sept. 27.3; orbital elements elements by Williams include i = 152 deg, e = 0.39, and P = 0.061 yr.
How S/2011 J1 Got its Name:
S/2011 J1 was so designated because it is a satellite (S) that was discovered in 2011, and was the 1st satellite of Jupiter (J) to be found that year.
How S/2011 J2 Got its Name:
S/2011 J2 was so designated because it is a satellite (S) that was discovered in 2011, and was the 1st satellite of Jupiter (J) to be found that year.