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Astrology wiki
Explore wiki concepts, word origins, evidence and their connections to traditions and tools.
1 terms
Sky events
Sunrise →
Also: sun rise
The Sun’s appearance at the horizon. Standard published times commonly use the apparent upper limb; a geometric body-centre calculation is a different, explicitly chosen convention.
Word origin, evidence & sources
Word origin · etymology
English compound of sun and rise.Merriam-Webster records sunrise from the 15th century. This word history does not specify a computational altitude or an ancient astrological day boundary.
How we know · epistemology
Astronomical geometry with an adopted horizon, limb and atmospheric model.A computed crossing is reproducible within those assumptions. Actual sighting also depends on terrain, observer height and atmospheric conditions.