The Weather Blog

July 03, 2009|By FRANK ROYLANCE | FRANK ROYLANCE,frank.roylance@baltsun.com

Today the Earth is at aphelion, its farthest excursion from the sun this year. Astronomers calculate we are 94,206,500 miles from Old Sol. That's roughly 3.1 million miles farther than we are at "perihelion" - our closest approach, on Jan. 4. The extra distance doesn't cool us down much. The Northern Hemisphere's sunward tilt at this time of year is what really heats up the northern summer.

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