Subj : Re: Mothers Day
To   : Adept
From : boraxman
Date : Fri May 19 2023 10:34 am

 Ad> I mean, I'm against them having demoted Ceres, too, and that was only a
 Ad> planet for about 50 years, ending around 1850.
 Ad> 
 Ad> Got demoted for similar reasons, too. Asteroid belt was discovered, so it
 Ad> wasn't as special. And Pluto got demoted because of a variety of stuff
 Ad> in the Kuiper Belt.
 Ad> 
 Ad> --- Mystic BBS v1.12 A47 2021/12/24 (Linux/64)
 Ad>  * Origin: Storm BBS (21:2/108)

As upset as I am (actually not all that much) about Pluto's demotion, it
makes sense to differentiate between planets which have regular circular (or close to it) orbits, and other objects which don't.

The only other differentiation which makes sense, that I can think of straight away, is to differentiate between planets which are spherical and those which aren't.  Rocky objects must reach a particular mass before gravity is strong enough to force it into a sphere.

--- Mystic BBS v1.12 A48 (Linux/64)
 * Origin: Agency BBS | Dunedin, New Zealand | agency.bbs.nz (21:1/101)

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