I vote for Pluto to be a planet August 24, 2006 That may mean we end up with 12 planets rather than 8, but Pluto does deserve to be described as a planet even though it wanders in and out of Neptune's orbit. Share Get link Facebook X Pinterest Email Other Apps Share Get link Facebook X Pinterest Email Other Apps Comments Joe Otten said… Pah! That's conservatism. The only conceivable reason for calling Pluto a planet is the precedent.Ceres was originally deemed a planet until other asteroids were found. Finding other TNOs puts pluto in a similar category. John Hemming said… Perhaps we should have a web vote.Pluto is not always TNO. It also has a moon.That should be pretty good. Something that orbits the sun and either dominates its orbit or has something that orbits it. Joe Otten said… The asteroid Ida has a moon. Wikipedia has a list of 25 asteroids with satellites, linked from my blog. John Hemming said… I think you are probably going to win the argument on this.
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Ceres was originally deemed a planet until other asteroids were found. Finding other TNOs puts pluto in a similar category.
Pluto is not always TNO. It also has a moon.
That should be pretty good. Something that orbits the sun and either dominates its orbit or has something that orbits it.