2006-08-19 15:26:57 · 21 answers · asked by jameyburger2 1 in Science & Mathematics ➔ Astronomy & Space
No!
As a scientist myslef i have to tell you that we are now facing a problem when dealing with the terminology... What exactly defines a planet. The 2003 UB313 was to be called the 10th planet but arguements are leading to calling it just A KBO ( kuiper belt object)
Sedna is really said to be the 10th planet of our solar system.. This redish planet takes about 10,500 to orbit the Sun and it's orbit is highly eliptical
Many other planetoids have been discovered in the Kuiper Belt
2006-08-19 15:59:28 · answer #1 · answered by Anonymous · 0⤊ 1⤋
There used to be nine:
Mercury, Venus, Earth, Mars, Jupiter,Saturn, Uranus, Neptune, Pluto
You can remember those easily by remembering this:
My very educated mother just served us nine pizza-pies.
each initial stands for the initials of the planets: m v e m j s u n p
There was a conference in Prag (Czech republic) last week and there is a dispute now if big asteroids like Ceres and others should be considered planets, as they circle around the sun in orbits just like planets.
It is not defined yet. So for this moment we have 9 planets in our solar system.
2006-08-19 18:23:00 · answer #2 · answered by Silvia 2 · 0⤊ 0⤋
9
2006-08-19 15:31:58 · answer #3 · answered by Anonymous · 0⤊ 0⤋
There are nine known and confirmed planets.
There is a "Planet X" outside of Pluto, but I don't remember if it was made official or not.
2006-08-19 15:32:38 · answer #4 · answered by Danielle K 3 · 0⤊ 0⤋
recognized planets are 9 however the size catagory that distinguishes a planet from an asteroid is very subjective there have been asteroids descovered since pluto was discovered that are greater in size
2006-08-19 15:35:55 · answer #5 · answered by drinkcorona2003 2 · 0⤊ 0⤋
actually if you aree asking in the milkyway obviously 9 and the new discoverd planets
if the whole solar system actually 198 planets round off 200
2006-08-19 17:37:58 · answer #6 · answered by _heart me♥ 1 · 0⤊ 0⤋
In this solar system, astronomers agree on nine planets today.
In the universe - make up a number, any number, as long as it's big.
2006-08-19 15:52:32 · answer #7 · answered by cagrunner 1 · 0⤊ 0⤋
Currently there are over 200 known planets.
http://planetquest1.jpl.nasa.gov lists 193 extrasolar ones.
plus the 9 ( or 8 or 12 ) that make up our solar system.
2006-08-19 17:13:16 · answer #8 · answered by Goodall, the Barbarian 2 · 0⤊ 0⤋
If you are refering to our solar system, there are 9 now, although it could become 11 or 12 soon. If you are talking about the universe, there are probably billions.
2006-08-19 15:33:49 · answer #9 · answered by iandanielx 3 · 0⤊ 0⤋
Nine known. But could have 2 more added to the list soon.
Mercury
Venus
Mars
Jupiter
Saturn
Uranus
Neptune
Pluto
Earth..... ( Third rock from the sun )
2006-08-19 15:36:16 · answer #10 · answered by Anonymous · 0⤊ 0⤋