Thursday, January 5, 2012

Perihelion today

Our Earth moves in an elliptical orbit around the sun. It may seem strange with our recent cold winter weather, but today our planet reaches its annual minimum distance to the sun — called perihelion. Our distance now is about 91.4 million miles, which about 3 million miles closer, or about 3% closer, than in July. Therefore, the January sun appears a little brighter in our sky than the July sun! Odd.

such is our view from Earth...

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