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Earth, Mercury, and Earth's Moon compared

by

Walter B. Myers/Novapix

Reference

a-sys98-00040

Date

2009-03-03

Mercury is a little larger than the Earth's Moon and is believed to be composed mostly of iron and rock, making it considerably denser than the Moon. Mercury also has a magnetic field about 1% as strong as the Earth's.
Mercury's diameter is only one third that of the Earth's.
It has only 6 percent the mass.
If you weigh 180 pounds on the Earth, you would weigh 64 pounds on Mercury.
Is only one-third the Earth's distance from the Sun