Creates a new TransitCalculator for transits of any of the planets
positions (longitudinal / latitudinal and distance) or speeds, be
it in the geocentric or topocentric coordinate system, or in tropical
or sidereal zodiac.
Creates a new TransitCalculator for relative transits of two different
planets to each other with the option for transits over longitudes,
latitudes, distance or the speed in any of these directions in the
geocentric or topocentric coordinate system, and in tropical or sidereal
zodiac system, both with the sum and difference of both planets positions
and speeds.