Question

what is the the use of planet Pluto and it is rejected from all 8 planets ?​

Answer 1

Answer:

Puto is a dwarf planet.

Explanation: In 2006 it was removed from the categorization because a planet needs 248 years to complete 1 rotation around the sun but Pluto didn't.

Hope it helps.

Answer 2

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In 2005, Eris, a dwarf planet in the scattered disc which is 27% more massive than Pluto, was discovered. This led the International Astronomical Union (IAU) to define the term "planet" formally in 2006, during their 26th General Assembly. That definition excluded Pluto and reclassified it as a dwarf planet.