Correlated Colour Temperature
The colour temperature corresponding to that point on the line representing full radiators of different colour temperature which is nearest to the point representing the chromaticity of the illuminant, considered on an agreed uniform-chromaticity-scale diagram.
Unit: kelvin (K)
Reference: C.I.E. (modified)
Note: For further information on the agreed uniform-chromaticity-scale diagram, see Reference: C.I.E.
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