Once a planet but now a pseudo
In 2006 International Astronomical Union (IAU) stated that in order to classify as a planet the celestial body in question must:
1.orbit around the Sun,
2.have sufficient mass to assume hydrostatic equilibrium (a nearly round shape)
3.have “cleared the neighbourhood” around its orbit.
Pluto failed to meet the 3rd condition as it overlaps Neptune’s orbit, and so had its status revoked to a mere “dwarf planet”
To help improve the meaning of these lyrics, visit "Never Forget Pluto" by CYNE Lyrics and leave a comment on the lyrics box