Sunday, December 20, 2009

A winter solstice treat: the Moon and Jupiter

Monday evening, December 21, the Moon will be positioned next to bright Jupiter in the southwest sky just after sunset. Try viewing this combination through binoculars. What can you see? The binoculars should reveal larger craters on the lunar surface along with mountains. Jupiter will show three starlike moons right next to it (one on its left and two on the right) before 7:20 and four after 7:20. Its moon Io, which is slightly smaller than our Earth's moon, moves out of eclipse at 7:20. It take a few minutes to come into view on the left side of Jupiter.

Such is our view from Earth ...

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