The azimuth is an angular measurement in a spherical coordinate system that is calculated by perpendicularly
projecting the vector from an observer (origin) to a point of interest onto a reference plane and measuring the
angle between it and a reference vector on the reference plane (source: Wikipedia).
Color index from US State Department political world map where no neighboring country has the same color, but all territories of a sovereign country share the same color (no gaps)
Color index from US State Department political world map where no neighboring country has the same color, but all territories of a sovereign country share the same color (no gaps)
The right ascension is the astronomical term for one of the two direction coordinates of a point on the celestial
sphere in the equatorial coordinate system, usually combined with declination.