Friday, December 22, 2017

High Radiant



Today's Astronomy Picture of the Day is a time lapse showing the Geminids. Notice how they all seem to come from a central point (the radiant)? In this case, the radiant is centered about the constellation of Gemini, giving the shower it's name. Where do "showers" come from? Asteroids and comets that cross the orbit of the Earth.

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