Question

Why Pluto is not a
planet?

fast

i will mark as brainliest​

Answer 1

Answer:

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 excludedPluto and reclassified it as a dwarf planet

Answer 2

Answer:

it did not meet the three criteria the iau uses to define a full sized planet.