The degree rising on the eastern horizon at birth. The first house, and the lens.

This page is a seed. The full write-up is coming; for now it exists so the links that point here resolve, and so the shape of the codex is visible while it grows.

what belongs here

  • the difference between the ascendant and the rising sign: a degree versus the sign it falls in
  • what the horizon actually is, physically
  • why the ascendant needs an accurate birth time
  • the chart ruler, and following it
  • the four angles: ASC, MC, DSC, IC