The act of being small doesn't preclude having moons. It's just harder when you're that small and orbiting that close to the sun, cause then you have a gravitational tug of war. So below a certain size, stuff in the solar system looks like idaho potatoes. The rules are, are you big enough to be round and significant enough in your g senseless? And are you dominant enough in your orbit to have cleared it out? I don't see why not, except because the sun is alive with energy. Could we effectively be seen as all our planets as moons for the sun? We ain't finding that yet.
Neil deGrasse Tyson and comic co-host Russell Peters answer fan-submitted questions on a variety of astrophysical topics including Pluto, the Andromeda Galaxy, the Magellanic Clouds, the Equator and the Earth’s axis, E = mc2, exoplanets, the Moon, and more!
NOTE: StarTalk All-Access subscribers can watch or listen to this entire episode commercial-free here: https://www.startalkradio.net/all-access/cosmic-queries-everyday-astrophysics-with-russell-peters/
Photo Credit: StarTalk®.
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