When a month is compressed into 12 seconds, as it is in this animation, our changing view of the Moon makes it look like it's wobbling. This wobble is called libration.
Learn something new every day.
Al Fin: "Cowboy Commentary", aka "Eat your veggies" The Flag banner is posted in order to defy those who would make patriotic symbols illegal or disreputable.
Tuesday, September 20, 2011
Hour by Hour video of the lunar phases so far in 2011
The moon appears to "wobble" in this video. The description calls this a "libration".
Learn something new every day.
Learn something new every day.
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