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Pluto is no longer a planet... Dang...

Miah's picture

CNN Article

Okay, it has a weird orbit but it does have 3 moons... Or had, can a non-plant still have a moon, or would it mearly have satellites?

"new rules for a planet: 'a celestial body that is in orbit around the sun, has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a ... nearly round shape, and has cleared the neighborhood around its orbit.'"

Apparently because it and Neptune dance Pluto got the boot:

"Pluto is automatically disqualified because its oblong orbit overlaps with Neptune's."

No reason why they didn't keep Pluto and axe Neptune...


Adam's picture

funny

I thought that just a few weeks ago they had decided to officially add a planet that was further out than pluto...


Miah's picture

Last week

They were talking about adding 3:

Pluto's moon (is it still a moon now, are all 3 of them still moons?) Cereus or something like that;

UB3131 which is the furthest known object in our solor system, on the very outer edge of the oort cloud (aparently its larger than Pluto) and has an extremely oval path; and

An asteroid in the asteroid belt between Mars and Juipter.

And now Pluto got the axe...