Fun Astronomy Facts - 17th Feb 2013 | Learn Astronomy HQ

Fun Astronomy Facts - 17th Feb 2013

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Mirrors were placed on the moon to bounce a laser back to Earth so we could accurately measure the distance to the moon.

Apollo 11 Lunar Laser Ranging Experiment.jpg



The distance to the moon changes due to its orbit. Ranging from 221,600 miles to 252,500 miles. Image by Tomruen

Lunar perigee apogee.png



Hipparchus was the first person to measure the distance to the moon in 2nd century BC. He was out by only 16,000 miles.
Hipparchus by Raphael.jpg



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