The Halifax Astrology School offers courses on all hand-calculations required to achieve any of the US exams, including NCGR, and ISAR.
 

This includes, but is not limited to:

  • Natal Chart Hand-Calculation 
  • Secondary Progressions 
  • Solar-Arc Directions 
  • Profections 
  • Primary Directions 
Last modified: Tuesday, 24 February 2026, 11:55 PM