luminosity
🇺🇸
/ˌluːmɪˈnɑːsəti/
🇬🇧
/ˌluːmɪˈnɒsəti/
the quality of being bright or shining, especially in the dark
The glowworms added a soft luminosity to the dark cave.
how beautiful and clear something shines or looks
The painter captured the luminosity of the sunrise in his painting.