steradian constant
AlternateUnit
const steradian
The unit for solid angle quantities (sr
).
One steradian is the solid angle subtended at the center of a sphere by an area on the surface of the sphere that is equal to the radius squared. The total solid angle of a sphere is 4*Pi steradians.
Implementation
static const AlternateUnit steradian =
AlternateUnit('sr', Unit.one, Quantities.solidAngle);