Harvard reckon Pluto should be a planet...

[MartG]

'''' let the argument begin

http://www.mirror.co.uk/news/world-news/pluto-plan...

Some argue that allowing Pluto to qualify as a planet would also allow various large moons e.g. Titan to qualify too, though my view is that as they orbit a planet not the sun then they aren't planets. Ceres however would be a planet

[MartG]

FunkyNige said:

Pluto orbits a point outside itself...
http://en.wikipedia.org/wiki/Pluto#mediaviewer/Fil...
So I'm not sure if that makes Pluto orbit its own moon?

Nope - they bot orbit the common centre of mass, known as a barycentre. The Earth & moon do the same, the only difference being their barycentre is within the Earth. In the future it is entirely possible we'll discover a pair of exoplanets of similar size to each other orbiting a barycentre in between them - they'll still be planets though.

[MartG]

And the public voted for Pluto to be a planet - of course the vast majority of 'the public' aren't qualified to have a meaningful opinion, the same as many other issues where the opinions of an uninformed/ignorant person are given equal weight to those of an expert in the field