What is didri latitud?

Didri latitude refers to a specific latitude line in geographical coordinates, but it seems there may be a misunderstanding or typo, as "didri" does not correspond to any widely recognized term in geography. If you meant "Diderot" or "Didri," please clarify for more accurate information. Otherwise, latitude generally describes the angular distance of a point north or south of the Earth's equator, measured in degrees.