I thought there was 8, but someone says there is 9. (If there is 8, please tell me why pluto was "expelled" from the system)
THANKS!
2006-12-30 12:56:33 · 14 answers · asked by nightowl 2 in Science & Mathematics ➔ Astronomy & Space
8
2006-12-30 13:26:31 · answer #1 · answered by spaceman20 2 · 1⤊ 0⤋
There is 8 planets Pluto is now called a "dwarf planet" which is not a planet. On August 24, 2006 Pluto was voted off the solor system as being classified as a planet. Reason being because it was so different from all other planets and is a frigid ball of ice and rock that orbits far from the sun on the frozen fringes of our solar system.
2007-01-02 23:58:44 · answer #2 · answered by get_inked_pierced 2 · 0⤊ 0⤋
The current planets are, mercury, venus, earth, mars, jupiter, saturn, Uranus and Neptune.
Pluto was demoted to a dwarf planet recently. Pluto and its binary system or tidally locked satellite(one that faces the same side to another planet) are not considered planets. Pluto, along with 44 of other rocky bodies, like Ceres and Xena are not planets.This is because of several reasons. First, Pluto does not have a proper systematic orbit, it crosses the orbit of Neptune, it also Pluto does not dominate the neighborhood around its orbit. Its moon Charon is only about 1/2 the size of Pluto, but other planets are MUCH larger than their moons. A planet is, an object that orbits the sun and is large enough to have become round due to the force of its own gravity. In addition, a planet has to dominate the neighborhood around its orbit.
2006-12-30 21:07:45 · answer #3 · answered by harvardgurl 2 · 0⤊ 0⤋
There were 9. Now there are 8. Pluto was expelled because some genius somewhere decided that it didn't fit the criteria for being a planet, that it was too small. rhode Island will shortly be losing statehood.
2006-12-30 21:00:55 · answer #4 · answered by furiousstyles22003 3 · 1⤊ 0⤋
There are officialy eight.
Pluto was ruled out because, since it has so many strange characteristics, if it was classified as a planet several other objects would qualify. There was an attempt to save it and include five or so other bodies as planets, but the decision was made to keep the deffinition of planets more strict and have eight planets instead of fourteen.
They have all been classified now as planetoids.
2006-12-30 21:01:54 · answer #5 · answered by socialdeevolution 4 · 0⤊ 0⤋
Pluto was recently expelled as a planet because it is more like a comet than a planet.
2006-12-30 20:59:19 · answer #6 · answered by ©2009 7 · 0⤊ 0⤋
in our solar system, there is only 8 planets, coz pluto was expelled
pluto was exelled coz of some requirements that so pluto not called planet again, like ceres,Scientist was expelled pluto...
requirement:
1. a Planet mustn't cut another planet's orbit(pluto cuts neptunus orbits)
and i forgot another requirements...
just find at another site..^^
2006-12-30 21:04:16 · answer #7 · answered by Bill Scoupt 1 · 0⤊ 0⤋
8 Pluto is gone cause it's too small, they call it a 'dwarf planet' now.
There's about 4 more dwarf planets included in our solar system now.
2006-12-30 21:47:00 · answer #8 · answered by Anonymous · 0⤊ 0⤋
pluto was replaced by Zena
astronomers have discovered I think that Pluto would melt if it was little closer to the sun so not a planet, then tey found a new one, Zena, really
MVEMJSUNZ = 9
2006-12-30 21:01:05 · answer #9 · answered by kurticus1024 7 · 0⤊ 0⤋
Pluto is dwarf planet.
2006-12-30 21:06:06 · answer #10 · answered by Bob B 2 · 0⤊ 0⤋