19 years ago on August 24, 2006, Pluto was demoted in status from Planet to Dwarf Planet, as the International Astronomical Union (IAU) formally defined the criteria for a planet.
A planet was defined as a celestial body that
(a) is in orbit around the Sun.
(b) has sufficient mass to assume hydrostatic equilibrium (nearly round) shape.
(c) has cleared the neighborhood around its orbit.
Pluto fails to meet the 3rd criterion 🙁
https://drive.google.com/file/d/1ckh-gW-oMYBbxKd8PgVyKwdMg1ywhA7h/view
https://www.iau.org/Iau/Science/What-we-do/Pluto-and-the-Developing-Landscape-of-Our-Solar-System.aspx?WebsiteKey=9e4eaea2-b0d6-4c4b-bd18-913a208b91be
#Pluto
1/n
