In astronomy, the zodiac is the ring of constellations that lines the ecliptic,
which is the apparent path of the Sun across the sky over the course of the year.
The Moon and planets also lie within the ecliptic, and so are also within the constellations of the zodiac.
In astrology, the zodiac denotes those signs which divide the ecliptic into twelve equal zones of celestial longitude.
As such, the zodiac is a celestial coordinate system, more precisely an ecliptic coordinate system, taking the ecliptic as the origin of latitude,
and the position of the sun at vernal equinox as the origin of longitude.
Panchang is a Hindu calendar and almanac, which follows traditional units of Hindu timekeeping, and presents
important dates and the calculations in a tabulated form. The study of Panchang involves understanding Rasi phala, the impact of the signs of the zodiac on the individual.
They are calculated by the planetary motions including Sun & Moon in our solar system.