The temperature of the full radiator which emits radiation of the same chromaticity as the radiation considered.
Unit: kelvin (K)
Note: The corresponding relative spectral distribution curves need not be similar provided that the radiations give rise to identical colour sensations.
Reference: C.I.E. (modified)
Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)
Celsius (previously Centigrade)
International Association of Marine Aids to Navigation and Lighthouse Authorities - AISM