The visual deviation in star and planet positions caused by Earth's orbital motion.
In the natal chart, structural analysis of multiple planetary aspect patterns, their dynamics and psychological correspondences.
A traditional astrological concept defining symmetrically reflected degree pairs around the summer and winter solstice axis.
The difference between a sign's rising time on the ecliptic and its rising time on the equator.
The calculation methods for the difference angle (ayanamsa) between the tropical and sidereal zodiac.
The angular distance of a celestial body from the celestial equator; used in parallel and contra-parallel aspects.
A time correction compensating for irregularities in Earth's rotation speed; critical for historical charts.
In the equatorial coordinate system, the angular distance of a point eastward from the vernal point.
An astronomical table showing the daily positions of planets; the fundamental tool of astrological calculation.
An ascension value dependent on geographical latitude; the basis of primary directions and house calculations.
The angular position of a celestial body on the ecliptic; the primary coordinate in astrology.
The tilt angle of the ecliptic plane relatiand to the celestial equator plane; currently approximately 23°26'.
The approximately 23.4-degree angle between the ecliptic plane and the celestial equator.
The deviation angle of a celestial body from the ecliptic; important in eclipse calculations and some classical techniques.
The astronomical and mathematical calculation methods of house cusps in different house systems.
The angular magnitude of the arc a celestial body traces below the horizon from setting to rising.
The calculation difference between Earth's center and the observer's center; especially significant for the Moon.
Different reference systems used in determining the positions of celestial bodies.
The difference between a celestial body's geometric (true) position and its position corrected for atmospheric and light effects.
The angular magnitude of the arc a celestial body traces aboand the horizon from rising to setting.
The analysis of planetary positions in the chart through harmonic multiples and the harmonic chart technique.
Astrological and astronomyk in calculations used kesintisiz day sayma system.
An ancient order ranking planets by astronomical speed/distance: Saturn, Jupiter, Mars, Sun, Venus, Mercury, Moon.
A concept defining degree pairs that reflect symmetrically around the equinox axis (0° Aries - 0° Libra).
The technical name for the diagram showing the positions of celestial bodies at the moment of birth, and its various presentation formats.
Technical difficulties and solutions for natal chart calculation in polar regions (66°+ latitude).
The interpretation of midpoint structures formed at the midpoint of two planets in Uranian and cosmobiology systems.
A short-period oscillation in Earth's axial tilt; taken into account in precise astrological calculations.
The rising and setting degrees of an ecliptic point at a specific latitude.
The right ascension value of the MC point; the primary parameter for house calculations.
Her planetin technique astronomyk valuelerini (RA, deklinasyon, enlem vb.) indicating detailed tablo.
A high-precision astronomical calculation engine used by most modern astrology software.
A high-precision planetary position calculation library developed by Astrodienst.
The period from one vernal equinox to the next; 365.2422 days.
Half of the arc along the celestial equator from a point's rising to its culmination.
A time measurement based on the Sun's passage through the local meridian, varying according to longitude.
the Sun's sabit starsa according to tam a tur yapma duration/periodsi; 365.2564 day.
Time measured according to the stars; the fundamental parameter for Ascendant and house calculations.
The difference between true solar time and mean solar time between fark; varies up to ±16 minutes throughout the year.