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New Moon Discovered Orbiting Uranus Using NASA’s Webb Telescope (science.nasa.gov)

submitted 2 weeks ago by paulhammond5155@lemmy.world to c/space@mander.xyz

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[–] glimse@lemmy.world 6 points 2 weeks ago

Apparently there is no established size requirement

There is no established lower limit on what is considered a "moon". Every natural celestial body with an identified orbit around a planet of the Solar System, some as small as a kilometer across, has been considered a moon, though objects a tenth that size within Saturn's rings, which have not been directly observed, have been called moonlets. Small asteroid moons (natural satellites of asteroids), such as Dactyl, have also been called moonlets.