Monday, April 6, 2015

Jupiter and moons tonight



Local astronomy buff Felton Davis passed along the following...

If it's clear I will set up on the corner of East 3rd Street and 2nd Avenue at 8 pm to show Jupiter, the largest planet in our solar system, presently high in the constellation Cancer.

Jupiter was in Leo last fall, has been shifting retrograde (clockwise) toward Cancer all winter, and in a few weeks will turn and move back (counter-clockwise) toward Leo. This is due to the relative positions of Earth as an inner planet versus Jupiter as an outer planet.

One of Jupiter's largest moons, Europa, will disappear behind the planet at 8:30 pm, and re-emerge from the other side, at around 11:30. Although Ganymede and Callisto are both larger than our moon, Europa and Io are a little smaller.

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