Spat (angular unit)
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The spat (symbol sp[1]), from the Latin spatium ("space"), is a unit of solid angle.[2][3] 1 spat is equal to 4Template:Pi steradians[1][3] or approximately Template:Val square degrees of solid angle (sequence A125560 in the OEIS).[2] Thus it is the solid angle subtended by a complete sphere at its center.[2]
The whole sphere contains ~148.510 million square arcminutes and ~534.638 billion square arcseconds.Script error: No such module "Unsubst".
See also
- Turn (angle) — the plane angle counterpart of the spat, equivalent to 2Template:Pi radians