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Watt/sq. cm/steradian (at 555 nm) to apostilb

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$ \text{Value} $

Luminance converter

Luminance converter from watt/sq. cm/steradian (at 555 nm) to apostilb

$$ 1\ \mathrm{W/cm^2/sr\ (at\ 555\ nm)}=\cfrac{{1}\cdot{6830000}}{3.1830988618\cdot 10^{-1}}\ \mathrm{apostilb}=21457077.8\ \mathrm{apostilb} $$