This is about the evolution of a Sirius-like star and its planets. You can go to to learn about “A-type” Hi :D What'a fine day! Hope you are happy too! And Check it out! b - AU - Mass c - AU - Mass d - AU - Mass e - AU - Mass Red Giant Max - AU Timeline of a star system - Planetball Should this be in "Science" or "Enterainment"?? Music used: DogePro - Intro Music Before Getting 1,800 Subs Kevin MacLeod - Elevator Toby Fox - But the Earth Refused to Die Kevin MacLeod - Fluffing a Duck 18 is a good number, because (324*(sinα^2+cosα^2))^(1/2)=18. Planetballs are basically same to polandballs, the only difference is the character, not countries, but space objects including stars, planets, moons and even galaxies.