Chart angles
HellenisticModern WesternCross-traditionTraditional doctrineAstronomical factEditorial synthesis
Definition
The points where the great circles of the horizon and meridian meet the ecliptic: principally the Ascendant and Midheaven. They depend on the exact time and place of birth, unlike the planetary positions.
Also called: Angles · Angular points
In more depth
The angles are not bodies. They are intersections: the Ascendant is where the ecliptic meets the eastern horizon at a given moment and place, and the Midheaven is where it meets the meridian overhead. Because the Earth turns roughly a degree of the zodiac every few minutes, the angles move far faster than any planet.[1]
That speed is why they carry the strictest data requirements on this platform. Computing them needs the observer's latitude and longitude, the obliquity of the ecliptic and the local sidereal time of the birth instant. If the birth time is unknown, they cannot be derived honestly and are reported as not calculated rather than estimated.[2]
References
Numbered citations in the text link to the records below; each record links to the full source registry.
- Chris Brennan. Hellenistic Astrology: The Study of Fate and Fortune. Amor Fati Publications. 2017. Modern practitioner interpretation View source record
- Sean E. Urban (editor); P. Kenneth Seidelmann (editor). Explanatory Supplement to the Astronomical Almanac. Sean E. Urban and P. Kenneth Seidelmann. University Science Books. 2013. Astronomical fact View source record