The ancient Hindu astrology is based on this sidereal or visible zodiac, accounting for the shift of the equinoxes by a correction called ayanamsa (ayanamsha). During the 20th century, after the examinations of Cyril Fagan, many western 
    astrologists have shown interest in the sidereal system. The sidereal zodiac is called Jyotish or Jyotisha by the Indian astrologers; its other name is Nirayana). Astrology software displaying tropical zodiac and constellations.