Saturday, January 19, 2013

Conjunction: Moon and Jupiter on January 21st

  Remember the Moon/Jupiter conjunction that occurred on Christmas Day? Well it looks like those two will soon be at it again.

 Just like on the 25th of last month, The Moon will once again come close to planet Jupiter on January 21st. This time, they will pass less than a degree from each other for most of North America.

 The Moon will be be in a waxing gibbous phase and should show off a wealth of detail along the terminator. Even though it will not be full, the waxing gibbous Moon will still be quite bright, so you might want to use a neutral density filter.

  Jupiter will be a real treat to observe. From about 6:00 to 7:40 PM PST the Great Red Spot will be visible. In addition, the Jovian moon Europa will transit the giant planet from 5:13 to 7:37 PM PST.

  Observers in most of South America will have a really nice treat: the Moon will occult, or cover up, the planet Jupiter.

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