To consider the Zodiac of the true Constellations) we must choose some Marker Stars - or Fiducial Stars ­- and this is inevitably a subjective act; some people can accept it, others can deny it having their own solutions… (Despite these 
    indisputable facts, it is not a senseless thing to try to divide the true Constellations to obtain this third type zodiac - Inner Sky Electrum Innovative Astrology Software - introducing the concept of the 'dynamic arc degrees' - can 
    represent several methods of the division in the chart wheels.