Astronomers Propose New Definition for Planets

The updated criteria focus on measurable properties, aiming to include exoplanets and refine classification.

The current IAU definition, established in 2006, excludes exoplanets and is considered vague by many astronomers.
The proposed definition emphasizes mass and orbital dynamics, moving away from less observable criteria like roundness.
The new criteria would still classify Pluto as a dwarf planet, despite its unique characteristics.
Researchers used mathematical models to identify natural groupings among celestial bodies, distinguishing planets from satellites.
The proposal will be presented at the IAU General Assembly, with hopes for future adoption.