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Guided View
New to astronomy? We explain every term as you browse, in plain English. Same pages, with the help built in.

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Compare Worlds

Put any objects side by side, with sizes drawn to true relative scale.

The Sun

Disc areas drawn to true relative diameter. Objects with no defined radius (spacecraft, nebulae) are omitted from the picture.

PropertyThe SunBetelgeuse
TypeStarStar
Radius695,700 km—
Surface gravity274.00 m/s²—
Day (rotation)609.1 h—
Year (orbit)——
DistanceAbout 149.6 million km from Earth (1 astronomical unit) —…Roughly 500–650 light-years — estimates genuinely disagree…
In one lineThe star at the center of our Solar System, and the engine that powers almost everything…One day this dying supergiant, Orion's red shoulder, will explode as a supernova.

“—” means the property doesn’t apply or isn’t defined for that object. Full sourced figures live on each object’s own page.

Popular matchups: Earth vs Mars Sun vs Betelgeuse Earth vs Jupiter Europa vs Enceladus Milky Way vs Andromeda Moon vs Pluto vs Ceres