AstronomyTeacher

News articles and posts about astronomy and astronomy education

Thursday, August 17, 2006

Rocky Mountain News: Local

MORE on the continuing controversy about the new definition of planet.

You might be interested in why Pluto's moon "Charon" is included. It's because the Pluto-Charon system is considered a double planet. Both objects orbit a point between them, rather than having the balancing poing within the larger planet (as it is with the Earth and moon or Jupiter and its moons.) Rocky Mountain News: Local

posted by Jeff Adkins # 5:51 PM

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