Noun: standard candle
- The basic unit of luminous intensity adopted under the Système International d'Unités; equal to 1/60 of the luminous intensity per square centimetre of a black body radiating at the temperature of 2,046 degrees Kelvin
"The standard candle provides a consistent reference for photometric measurements";
- candle, candela, cd
Derived forms: standard candles
Type of: candlepower unit, luminous intensity unit
Encyclopedia: Standard candle