Fundamental to Hellenistic Astrology, Sect alters the function of Benefics and Malefics in an Astrological Chart. The Diurnal Sect planets are Sun, Jupiter, and Saturn. The Nocturnal Sect planets are Moon, Venus, and Mars. Mercury aligns with the sect of the ruler of its Bounds, or more commonly by whether its a morning or evening stars.
Planets that are considered in-sect in a given chart generally more constructive, while those out of sect are thought to be agitated or inhibited in some way.
Rejoicing Conditions
Less important than sect, diurnal planets prefer to be above the horizon in a day chart and below it in a night chart - with the reverse being true of nocturnal planets. There are also rejoicing schemes based on the Zodiac, but most of them conflict.
Hellenistic Astrology by Chris Brennan Astrology Morning Stars vs. Evening Stars