 Since some planets were seen to be stronger in a positive or masculine environment, and others were seen to be more effective in a negative or feminine environment, whether a planet is in sect in any given chart was of particular importance to Hellenistic astrologers, who gave sect greater weight than any other astrological factor.The luminary of sect is the luminary which is said to rule each sect.The Sun is the luminary of sect in a day chart (where the Sun is above the horizon) and the Moon is the luminary of sect in a night chart (when the Sun is below the horizon.)