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2007-07-26 01:56:50 · 11 answers · asked by dannylovesolivia 1 in Science & Mathematics Astronomy & Space

11 answers

In the solar system, 8 'real' planets according the current (and recent) definition. If one adds the minor planets, that could run in the 100's if one does not have a minimal size defined.

If you want to also take into account the planets in the rest of the galaxy, the count will run most likely be in the several billions, 212 of which have already been detected.

2007-07-26 02:03:26 · answer #1 · answered by Vincent G 7 · 1 1

9.
No wait, 8.
No wait, 11.
No wait, hundreds.
No wait, billions!

These USED to be 9 planets. But that was only orbiting our Sun. Then they started finding planets orbiting other stars. They have found hundreds so far, but there are probably billions more waiting to be found.

Then they found some really big asteroids orbiting our Sun out past Pluto, which heated up the simmering argument that had been going on since Pluto was discovered in 1930, that said Pluto was too small to be a planet, and anyway was in a strange orbit. So they had a big meeting of astronomers and reclassified Pluto as a "dwarf planet". At the same time they reclassified the largest traditional asteroid, Ceres, as a dwarf planet too, as well as the largest new asteroid orbiting out past Pluto (Eris, once unofficially called Xena). So now instead of 9 planets our solar system has 8 planets and 3 dwarf planets. But some people say that a dwarf planet is a planet too because it has the word "planet" in the name. So depending on who you ask, our solar system now has either 8 or 11 planets. And there is the occasional die-hard old timer who still insists on 9, no matter what the experts say.

I go with the experts and say 8, in our solar system.

2007-07-26 09:06:39 · answer #2 · answered by campbelp2002 7 · 1 1

8

2007-07-26 08:59:14 · answer #3 · answered by M Series 3 · 1 1

220.

8 in this solar system.
(Pluto isn't a planet)

212 exoplanets around nearby stars.

So, there are 220 known planets. It is unlikely that there is a celestial body big enough to be labeled a planet in our solar system that has gone unnoticed. But, it is very likely that there are other planets outside of our solar system orbiting other stars that haven't been found yet.

2007-07-26 09:50:25 · answer #4 · answered by silverlock1974 4 · 1 1

There are 8 planets in our solar system for the latest information!!.. Pluto was there but it has recently been ruled out by the deciders (the scientists)

2007-07-26 09:55:44 · answer #5 · answered by Harsh M 2 · 0 1

In solar system?are 10
1.mercury
2.venus
3.earth
4.mars
5.jupiter
6.saturn
7.uranus
8.neptun
9.pluto
10.sedna

2007-07-26 19:05:22 · answer #6 · answered by TH3 G@t3 0f W00d ....... 1 · 0 1

19583646576367785798490469765997865876984687587574783786477897090798999458470000440060202520 if you count the destroyed 1354367 ones.These are all the planets in the universe.(At least in this universe)

2007-07-26 09:01:43 · answer #7 · answered by Anonymous · 0 2

at last count the universe had over 261

2007-07-26 15:02:22 · answer #8 · answered by cones2210 4 · 1 0

could be infinte cause other galaxies has lots of planets too

2007-07-26 09:53:18 · answer #9 · answered by isildor 2 · 0 2

first there were nine and now there is only 8 [in our solar system, according to the scientists!]

2007-07-26 08:59:57 · answer #10 · answered by godshandmaiden 4 · 0 2

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