Two New Moons Found Orbiting Jupiter
Tiny satellites add to planet’s “backward” swarm, astronomers say.
for National Geographic News
Published February 2, 2012
Two new moons have been found orbiting Jupiter, bringing the Jovian family count up to 66 natural satellites, astronomers revealed this week.
Currently known as S/2011 J1 and S/2011 J2, the new moons were first identified in images acquired with the Magellan-Baade Telescope at the Las Campanas Observatory in Chile on September 27, 2011.
The objects are among the smallest moons yet discovered in the solar system, each measuring only about a kilometer (0.62 mile) wide.