reciprocal second per steradian metre squared
type: Concept
in scheme: unit-of-measure
notation: D2
conversion multiplier: 1.0
dimension vector: L-2 T-1
rec20 quantity: photon luminance, photon radiance
rec20 sector: Light and Related Electromagnetic Radiations
ucum code: s-1.sr-1.m-2
unit symbol: s⁻¹/(sr·m²)