Question

What do Ceres, Haumea, and Makemake have in common?
1.They were all once classified as planets,
2.They are all dwarf planets in our solar system,
3.They are all moons of Jovian planets,
4.They were all discovered in the 20th century.

Answer 1

The definition of dwarf planet we could find that the correct answer is:

      2. They are all dwarf planets in our solar system,

   

In the solar system a classification of dwarf planets to the celestial body was created in 2006 with the following characteristics:

• It is in orbit around the Sun

• They have enough mass for gravity to define them, generally close to a sphere

• It is not a satellite of another planet

• It has not cleared the vicinity of its orbit.

According to this classification among the dwarf planets we have Ceres, Makemake, Haumea

Let's review the different claims.

1. False. They were never classified as planets, they were classified as asteroids

2. True. They are in the definition of dwarf planets

3. False. They are not moons of any planet

4. False. Ceres was discovered in 1801

In conclusion, using the definition of a dwarf planet, we find that the correct answer is:

       2. They are all dwarf planets in our solar system

Learn more about dwarf planets here:

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