In preparing for an astronomy event tonight I have been going over - TopicsExpress



          

In preparing for an astronomy event tonight I have been going over some comparisons in my head. Wrap your mind around this: If the Earth was the size of a golf ball, the Moon would be a marble 4 feet away. The Sun would be a ball 15 feet in diameter and 1/3 of a mile away. If the Sun was the size of a golf ball, Plutos orbit would be a circle 1200 feet across. If Plutos orbit was the size of a golf ball, the closest star, Alpha Centauri, would be 1/5 of a mile away. The Milky Way would stretch from the Pacific Ocean to the Mississippi River. If the Milky Way was the size of a golf ball, the Andromeda Galaxy would be another golf ball 3 feet away. There are hundreds of billions of galaxies in the known universe...
Posted on: Fri, 07 Nov 2014 21:18:20 +0000

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