Question

Which planet is known as the dwarf planet?

Answer 1

Dwarf planet:

1. The celestial bodies that are too tiny to be classified as planets but too huge to be classified as stars are called dwarf planets.
2. Pluto was previously classed as a planet from $1930$ until $2006$ before being redesignated as a dwarf planet.
3. Pluto had always been an exception. Pluto's orbit appeared unusual in that it was sometimes nearer to the sun than Neptune.
4. Things became clear in $2003$, even before astronomer Michael Brown found Eris, a similar-sized planet to Pluto in such an outer area of the solar system.
5. The International Astronomical Union established the title "dwarf planet" in $2006$ and assigned it to both Pluto and Eris.

Therefore, Pluto is known as a dwarf planet.