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This little guy has a width less than the length of Manhattan, so I was surprised to hear it being called a moon. But Wikipedia says there isn't really a lower
by nostromo 13y ago
This little guy has a width less than the length of Manhattan, so I was surprised to hear it being called a moon.
But Wikipedia says there isn't really a lower limit to the size of a moon -- if it orbits a planet, it's a moon. Unless we put it there, in which case it's a satellite. http://en.wikipedia.org/wiki/Natural_satellite#The_definition_of_a_moon http://en.wikipedia.org/wiki/Natural_satellite#The_definitio...
- MichaelApproved 13y agoThey're both satellites. One is natural (moon) while the other is man made.
- hkolek 13y ago> This little guy has a width less than the length of Manhattan, so I was surprised to hear it being called a moon. Phobos and Deimos are far smaller. http://en.wikipedia.org/wiki/Phobos_(moon) http://en.wikipedia.org/wiki/Phobos_(moon) http://en.wikipedia.org/wiki/Deimos_(moon) http://en.wikipedia.org/wiki/Deimos_(moon)