🌌 Main Preferences: Coordinate System

Defines the reference point and the plane in which the chart is observed and calculated.

• System Center: Select the point relative to which planetary positions are considered.

  • Geocentric — from the perspective of the Earth (standard choice).
  • Topocentric — from the perspective of a specific point on the Earth’s surface.
  • Heliocentric — from the perspective of the Sun.
  • Hybrid — a geocentric chart with heliocentric planetary positions displayed as “doubles.” This approach is used, for example, by the well-known western astrologer Patrick Davis. She believes: “…gaps in understanding are filled, power structures are revealed. The horoscope becomes clearer, more precise, and easier to interpret correctly.”

• Projection Plane: Sets the coordinate system for calculating positions.

  • Ecliptic — standard zodiacal longitude, projection onto the plane of the ecliptic.
  • Equator — projection onto the plane of the equator. The scale corresponds to right ascension.
  • Declination — projection onto the plane of declinations. The scale is limited to 30° of northern and southern declination. This scale makes it convenient to analyze symmetrical patterns in declination.
  • Horizon — azimuthal system (geodetic or astrological azimuth).
    • Geodetic azimuth — from north (top), then clockwise: east, south, west.
    • Astrological for the northern hemisphere — east on the right, then counterclockwise: north, west, south.
    • Astrological for the southern hemisphere — east on the left, then counterclockwise: north, west, south.
  • Prime Vertical — projection onto the plane of the Prime Vertical. 0° on the scale corresponds to east, then counterclockwise. The upper coordinate corresponds to the zenith, the lower to the nadir.
  • Meridian — projection onto the plane of the Meridian. 0° on the scale corresponds to north, then counterclockwise. The upper coordinate corresponds to the zenith, the lower to the nadir.
  • Mundane Position — proportional position of planets in houses, where each house occupies exactly 30°.
  • Oblique Ascension — in this projection, angular distances between objects are projected onto the celestial equator, but with a correction for the inclination of the local horizon (the observer’s geographic latitude). Unlike right ascension, this plane reflects the real picture of how planets rise at a specific location on Earth. It is most often used for calculating primary directions and specific mundane aspects.

• Zodiac: Select the type of Zodiac.

  • Tropical (tied to the equinox points).
  • Sidereal (tied to the fixed stars, with a choice of Ayanamsha).
  • Custom — allows you to set your own starting point for the Zodiac. To do this, select an object by which the beginning of the Zodiac will be determined, or set a fixed longitude value (UD). For example, for the Draconic Zodiac, select North Node. You can choose how the Custom Zodiac will interact with multi-wheel charts:
    • Base Wheel — a unified coordinate system for all wheels, calculated from the object of the inner (base) wheel.
    • Current Wheel — a unified coordinate system for all wheels, calculated from the object of the currently active wheel.
    • Independent — the coordinate system is calculated for each wheel separately, based on the position of the object within that specific wheel.
    • Mixed — a flexible setting that allows combining Tropical and Custom zodiacs in one chart for different wheels. The Custom Zodiac in this mode is always calculated independently for its own wheel.

• Harmonic: A window for managing harmonic charts. Allows adding/removing harmonics and selecting the current one.

If building your own configuration from scratch, it is best to start with the choice of coordinate system.