d) What is the long term impact of sun's alteration of Aphelion and Perihelion position on terrestrial
climate?
Answers
Answer:
Seasonal weather patterns are shaped primarily by the 23.5-degree tilt of our planet's spin axis, not by Earth's elliptical orbit," explains George Lebo, a professor of astronomy at the University of Florida. "During northern winter the north pole is tilted away from the Sun. Days are short and that makes it cold. The fact that we're a little closer to the Sun in January doesn't make much difference. It's still chilly -- even here in Florida!"
Right: Duane Hilton created this view of the perihelion Sun shining down on a snowy scene in central California. Don't stare at the Sun at perihelion -- it can blind you just as it might at any other time of the year!
Seasons are reversed in the southern hemisphere. When the north pole is tilted away from the Sun, as it is now, the south pole is tilted toward it. As a result, summer is in full swing south of the equator even as northerners are bracing for a long winter.
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