A quadrant-based house division method that calculates cusps using the Midheaven and time of birth.
Definition
The Koch house system is a quadrant-based method for dividing the celestial sphere into houses. It uses the Midheaven (MC) as a starting point and calculates house cusps by projecting the birth location's latitude and the local sidereal time. The system attempts to reflect the rotation of the Earth and the dynamic interplay of time and space. Koch houses are not equal in size, and their dimensions vary significantly based on latitude, with distortion increasing near the poles. This system is particularly favored for its emphasis on the individual’s experience of time and space, making it popular in psychological and predictive astrology. Critics note its inaccuracies in extreme latitudes and argue that its reliance on time-specific calculations may limit its universality. Symbolically, the Koch system emphasizes the subjective nature of experience, aligning house placements with the native's unique perception of life events. It is often used by astrologers seeking a more dynamic and personalized understanding of the natal chart structure.
In a chart
In a natal chart using the Koch system, look for the uneven spacing of house cusps. Pay attention to the Midheaven's position, as it's pivotal. Ignore equal house assumptions.