Calculations

House Systems:

• Placidus
• Koch
• Porphyrius
• Neo-Porhyrius
• Regiomontanus
• Campanus
• Classical
• Alcabitius
• Abenragel (A-P-C)
• Meridian (axis rotation)
• Horizontal (azimuthal)
• Topocentric
• Vedic
• Sripati (Hindu Bhava)
• Equal houses
  • From ASC
  • Vehlow equal (ASC is placed in the middle of the first house)
  • Vehlow Nonagesimal RA
  • From Planets and Moon's North Node.
• M-Houses
• MC Whole Sign
• ASC Whole Sign
• Whole Sign from planets
• Morinus
• Sunshine. This is a unique house system with cusps for the 2nd, 3rd, 5th, 6th, 8th, 9th, 11th, and 12th houses calculated independently, so that the distance between the opposite house cusps such as 2nd and 8th may not always be equal to 180 degrees.
• Natural Hours
• Natural Chart
• Earth
• Krusinski
• Carter's Poly Equatorial/ Albohazen (Halyian)
• Octopos. This system uses 8 houses instead of traditional 12.
• Dominion
• Whole Sign.
• MC-Mirror (Levitsky)
• AM Sidereal Hours
• Decanate / Incognito system (Licht)
• Gauquelin Zones
• 13-House systems (3 variations)

• Ecliptical
• Equatorial (RA) coordinates
• Horizontal Astronomical (Azimuthal)
• Horizontal Astrological
• Local Horizon Map
• 4 Mundoscopes
• 8 Z-transformations

• Fagan/Bradley
• Lahiri
• De Luce
• Raman
• Ushashashi
• Krishnamurti
• Djwhal Khool
• Sri Yukteshwar
• JN Bhasin
• Babylonian
  • Kugler (3 variations)
  • Huber
  • Mercier
• Aldebaran at 15 Taurus
• Hipparchos
• Sassanian
• Galactic Center
• J2000
• J1900
• B1950
• Suryasiddhanta (mean Equinox)
• Suryasiddhanta (mean Sun)
• Aryabhata
• Aryabhata (mean Sun)
• Revati
• Citra/Spica
• User-Defined