When was mars considered a dwarf planet?

Answer 1

Mercury is the smallest of the major planets, but it won't be classified as a dwarf. The reason that it won't be classified as a dwarf planet is that it has cleared its orbit of other objects. Pluto, Ceres, Eris, and the other dwarf planets all have a bunch of other junk in their orbits, and that is why they aren't considered planets any more.

Answer 2

No, Mercury should not be a Dwarf Planet, since it is by far the biggest object in its neighbourhood. It has cleared its area of space sufficiently to fulfil the third requirement of a planet.

Answer 3

The definition of planet includes more than just size. It also includes that the planet's gravitational field, besides existing, has cleared its orbit. (of debris, planetesimals, etc.)Pluto has not done this, while Mercury has.

Answer 4

No. The International Astronomical Union (IAU) defines a dwarf planet as a celestial body in direct orbit of the Sun that is massive enough for its shape to be controlled by gravitation, but that unlike a planet has not cleared its orbital region of other objects.

Answer 5

Mercury is a planet since it agrees with the criteria for a planet:

1) spherical

2) cleared its surrounding from other objects.

Answer 6

Mars has never been considered a dwarf planet. It is a full-fledged planet in our solar system, the fourth planet from the sun.

Answer 7

No. Mercury is just a little too big to be a Dwarf Planet.

Answer 8

Nope, it's a moon.

In greater detail, part of the definition is that a dwarf planet must orbit the sun. The moon orbits Earth.

Answer 9

No, Mars is a regular planet.

Answer 10

no, Pluto is though