Light takes 8.7 hours to circle Stephenson 2-18 once. An Earth aircraft would need roughly 500 years.
Light takes 8.7 hours to circle Stephenson 2-18 once. An Earth aircraft would need roughly 500 years.
More from this video
See all →Rho Cassiopeiae packs 40 Suns of mass into a star 500 Suns wide.
Pistol Star contains 25 times the Sun’s mass but spans 300 times its radius.
Gacrux is only 30% more massive than the Sun, yet has swollen to about 84 solar radii.
A massive star can shed mass and shrink into a hotter hypergiant phase as it evolves.
Supermassive stars usually stop growing around 150 solar masses when intense radiation blows away…
Hypergiants are expanded massive stars whose weak surface gravity lets powerful winds strip them…
After core hydrogen runs out, a star can expand hundreds of thousands of times larger during a…
Red dwarfs barely fuse hydrogen, so they stay small, cool, and dim instead of swelling after death.
Don't lose this one
A free account saves insights like this to your Boards, and Korva resurfaces them so you actually remember.