There are how many planets now?

Question

I can't believe they are pulling one out we've known about for years. How did they do that for sure?

Answer 1

8 planets

Mercury
Venus
Earth
Mars
Jupiter
Saturn
Uranus
Neptune

According to the new definition, a full-fledged 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.

Pluto has been demoted because it does not dominate its neighborhood. Charon, its large "moon," is only about half the size of Pluto, while all the true planets are far larger than their moons.

In addition, bodies that dominate their neighborhoods, "sweep up" asteroids, comets, and other debris, clearing a path along their orbits. By contrast, Pluto's orbit is somewhat untidy.

Answer 2

Our solar system is thus considered to have eight planets: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. Under a separate resolution, it is also considered to have three dwarf planets: Ceres, Pluto, and Eris. There have been more than two hundred planets discovered orbiting other stars to date.[3]

Historically, there had been no formal scientific definition of "planet" and without one, the Solar System had been considered to have various planets over the years. This changed when a resolution covering planets within our solar system was formally adopted by the IAU in 2006, limiting the number to eight. However, the IAU's position on those in other systems remains only a working definition in place since 2003, and as such, is easily subject to change. The IAU has not yet taken a position on free-floating objects of planetary mass outside star systems, other than to exclude those in young star clusters.

Answer 3

A group of about 400 individuals ( out of 10,000 members ) in a scientific organization desided to define a planet as a spherical object which is orbiting a star and has cleared its orbit ( meaning no other objects orbiting with it ) Because pluto has a large number of objects floating/orbiting with it....it does not meet the "new" definition of a planet. It is now classified as a Dwarf Planet.

Answer 4

Right now, their are eight planets has Pluto has been declared has a dwarf planet. If they ruled Pluto has a planet still, their would've been other planets such has Ceres and UB313 but their isn't. Their is only eight.

Mercury
Venus
Earth
Mars
Jupiter
Saturn
Uranus
Neptune

Answer 5

I guess it's only 8 now. Weird, huh, but I guess it just didn't quite meet the current definition of a planet like it was thought to in the past.