Also known as the Axial system, or Equatorial system, it divides the celestial equator in twelve 30° sectors (starting at the local meridian) and projects them on to the ecliptic along the great circles containing the North and South celestial poles. The intersections of the ecliptic with those great circles provide the house cusps. The 10th house cusp thus equals the Midheaven, but the East Point (also known as Equatorial Ascendant) is now the first house's cusp. Each house is exactly 2 sidereal hours long. This system was proposed by the Australian astrologer David Cope in the beginning of the 20th century and has become the most popular system with the Uranian school of astrology. The Ascendant (intersection between the ecliptic and the horizon) preserves its importance in chart interpretation through sign and aspects, but not as a house determinant, which is why this house system can be used in any latitude.