PDA

View Full Version : dwarf planets - how about dwarf moons?



karstenthemsen
2016-Oct-12, 10:22 PM
hi

With the huge number of moons in the solar system, of which the majority are very, very small and indeed some only few km across, ought there not be a categorisation of moons and dwarf moons, just like we have planets and dwarf planets?

As it is now, are there any requirements before a rotating object can be categorised as a moon, in a similar way as with planets and dwarf planets?

Kind regards

Karsten

John Mendenhall
2016-Oct-13, 03:06 AM
Good question!

IIRC, planets, dwarf planets, asteroids, and comaets orbit the Sun. Moons orbit the sun orbiterss.

However, I would entertain the idea of reclassifying Pluto-Charon as a pair of dwarf planets.