2006-09-07 16:11:59 · 9 answers · asked by tom science 4 in Science & Mathematics ➔ Astronomy & Space
I thought he was a dog?????
2006-09-10 19:13:24 · update #1
the international astronomical union defined three terms "planet", "dwarf planet", and "small solar system body". this does not change anything about the solar system or pluto. it just corrects the mistake of classifying pluto as a planet initially. i don't know how long this will drag on tho. many planetary scientists are not satisfied that the definition is not rigorous enough.
because pluto orbits the sun, is round, does not have an isolated orbit (a bunch of other similar bodies have similar orbits.), and is not a satellite it is a dwarf planet.
i have been waiting for this since i was about twelve. i feel somewhat satisfied. this was the right thing to do, believe me. i don't understand why so many are having such a problem with this.
(1) A "planet" is a celestial body that (a) is in orbit around the Sun, (b) has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape, and (c) has cleared the neighborhood around its orbit.
(2) A "dwarf planet" is a celestial body that (a) is in orbit around the Sun, (b) has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape, (c) has not cleared the neighborhood around its orbit, and (d) is not a satellite.
(3) All other objects orbiting the Sun shall be referred to collectively as "small solar system bodies".
look here:
http://en.wikipedia.org/wiki/Kuiper_belt
2006-09-07 19:08:37 · answer #1 · answered by warm soapy water 5 · 2⤊ 0⤋
Pluto is no longer a planet, it violates one of the new conditions decided on by the International Astronomical Union for planets. Mainly, it has not "cleared the neighbourhood" around its orbit, more specifically the Kuiper belt. This essentially means it's been demoted to a dwarf planet due to bad housekeeping.
2006-09-07 23:19:22 · answer #2 · answered by Andy S 6 · 0⤊ 0⤋
Darlin, they REVOKED Pluto's standing AS a planet after all this time. And I don't get it. It's in orbit around the sun. Sounds like a planet to me.
Actually, I think it has something to do with Pluto being part of the Kuiper belt and having a revolution with Charon. Charon is slightly larger. Pluto and Charon revolve around each other as they also revolve around the sun. Weird, huh?
2006-09-07 23:17:20 · answer #3 · answered by lizardmama 6 · 0⤊ 0⤋
Hello? Wher have you been getting your sorce from, Pluto was named a planet long before we were even thought of back in 1930 after a roman god
2006-09-07 23:21:41 · answer #4 · answered by tkyla68 1 · 0⤊ 0⤋
You got that backward. It used to be named a planet Recently they tightened up the rules for what could be named a planet. Pluto is too small to be one under the new rules.
2006-09-07 23:15:02 · answer #5 · answered by Rich Z 7 · 0⤊ 1⤋
it was named as a planet in the 30's now it's been demoted to damn near an asteroid
2006-09-07 23:18:51 · answer #6 · answered by Michael S 4 · 0⤊ 0⤋
They just took pluto's "planet" status away you nimrod!
2006-09-07 23:17:04 · answer #7 · answered by Smitty 5 · 0⤊ 0⤋
How come they did? It had been a plant - now they are trying to saw it isn't - although there are many in the scientific community that are against this new designation that it isn't.
2006-09-07 23:13:45 · answer #8 · answered by Anonymous · 0⤊ 0⤋
They didn't
2006-09-07 23:14:04 · answer #9 · answered by nick s 6 · 0⤊ 0⤋