Because a new decan also appears heliacally every ten days (that is, every ten days, a new decanic star group reappears in the eastern
Kaynak: Decans

The Western sidereal astrologer , Cyril Fagan , has speculated that the planets all rose heliacally at these degrees in the year of the
Kaynak: Exaltation (astrology)

They recognized the importance of the heliacally rising constellation as markers for the astrological ages and claimed that knowledge of
Kaynak: Astrological age