Spat (angular unit)

The spat (symbol sp), from the Latin spatium ("space"), is a unit of solid angle. 1 spat is equal to 4π steradians or approximately 41253 square degrees of solid angle (sequence A125560 in the OEIS). Thus it is the solid angle subtended by a complete sphere at its center.

"Spat (unit)" redirects here. Not to be confused with Spat (distance unit).
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