Category

Pluto's planethood

page 1

dwarf planet in the Solar System

Michael E. Brown

American planetary astronomer

planet beyond Neptune

any Solar System planet that might orbit the Sun beyond Neptune

IAU definition of planet

definition of a planet as a body orbiting the Sun, in hydrostatic equilibrium, having cleared the neighborhood around its orbit; ratified by the IAU in August 2006, thereby reclassifying Pluto as a dwarf planet instead

clearing the neighbourhood

criterion for a celestial body to be considered a planet

American planetary scientist

How I Killed Pluto and Why It Had It Coming

2010 memoir by Michael E. Brown

Something Ricked This Way Comes

episode of Rick and Morty (S1 E9)

The Pluto Files

book by Neil deGrasse Tyson