Maximum latitude for Placidus and Koch house systems
Above this latitude (approximately the Arctic/Antarctic circles),
Placidus and Koch calculations fail because the mathematical solution
doesn't exist (some degrees never rise or set during certain times of year).
Systems like Equal and Whole Sign work at all latitudes.
Maximum latitude for Placidus and Koch house systems
Above this latitude (approximately the Arctic/Antarctic circles), Placidus and Koch calculations fail because the mathematical solution doesn't exist (some degrees never rise or set during certain times of year).
Systems like Equal and Whole Sign work at all latitudes.