What is the most critical part of the modern scientific definition distinguishing a planet from a dwarf planet?

Answer

Clearing the neighborhood around its orbit.

The criterion requiring an object to be gravitationally dominant and have cleared debris from its orbital path over time is cited as the most critical and often contentious aspect used to separate planets from dwarf planets.

What is the most critical part of the modern scientific definition distinguishing a planet from a dwarf planet?

#Videos

Clearing the neighbourhood - YouTube

DefinitionastronomyorbitplanetIAUclearing the neighborhood