. . . . . . . . . . . . . . "0.5"^^ . . . . . . . . "luminosity"@en-us . . "luminosity"^^ . . . . . . "luminance"@en-us . "luminousness"@en-us . . . "103919032"@en-us . . "brightness"@en-us . . . . "105018103"^^ . . "the quality of being luminous; emitting or reflecting light; \"its luminosity is measured relative to that of our sun\""@en-us . . . . "104751905"@en-us . "05018103-n"^^ . "brightness level"@en-us . . . "light"@en-us . "the quality of being luminous; emitting or reflecting light; \"its luminosity is measured relative to that of our sun\""@en-us . "0.25"^^ .