the.com/steradian
the way math measures how much sky a thing devours from your eyeball
full spherea complete sphere holds about 12.57 steradians
the areaone cuts surface equal to radius squared
si oddballofficially dimensionless, yet bossy enough to need a name
sun's bitethe sun claims roughly 0.00006 steradians of sky
radian's cousinit's the radian dragged into a second dimension