Dwarf Planets

Front

When did Pluto become a dwarf planet? Options: when it was discovered, last year, 1806, 2006

Back

2006

Front

How many dwarf planets are there?

Back

5

Front

Which of these is not a dwarf planet?

pluto

,

ceres

,

makemake

,

saturn

Back

saturn

Front

How many planets are there in the solar system?

Back

8

Front

Where is Pluto in the Solar System?

Back

The Kuiper Belt

Front

What is one of the criteria for a celestial body to be classified as a planet according to the International Astronomical Union's 2006 definition?

Back

It must orbit a star (in our cosmic neighborhood, the Sun).

Front

One of the criteria for a planet according to the International Astronomical Union's 2006 definition.

Back

It must be big enough to have enough gravity to force it into a spherical shape.

Front

What is one of the criteria for a planet according to the 2006 definition by the International Astronomical Union?

Back

It must have cleared away any other objects of a similar size near its orbit around the Sun.

Front

This dwarf planet has a strange oval shape and is the 3rd dwarf planet from the sun.

Back

Haumea

Front

Why was Pluto declassified as a planet?

Back

It hasn't cleared its orbit of debris.