These constant macros system variables are used in astronomy and astrology macro functions to provide an easier way to refer to planetary and ephemeris events than using their numerical IDs.
Thus, instead of the following line of code,
sResult = PlanetaryEventSymbol(2, true)
you can write the following which is easier to write (and more obvious to read later):
sResult = PlanetaryEventSymbol(n_UPPER_CONJ, true)
See also: planetary events, planetary ids and indices of astronomical bodies.
Topic 177630, last updated on 18-Apr-2020