3 ms·
https://en.wikipedia.org/wiki/Definition_of_planet#Double_planets_and_moons https://en.wikipedia.org/wiki/Definition_of_planet#Double_pl...
by forgot-my-pw 7y ago
https://en.wikipedia.org/wiki/Definition_of_planet#Double_planets_and_moons https://en.wikipedia.org/wiki/Definition_of_planet#Double_pl...