In astrology, Vedic Ephemeris is of great value and use as it helps in understanding today’s Grah position and planetary transit (today’s Gochar). Planet Ephemerides are also used to design the celestial navigation software which helps with spacecraft navigation and can work as a backup option for the global positioning system (GPS). In astronomy, it finds use in determining the movement and the centre of the planets, stars and galaxies.įor instance, the astronomers following astronomical events of solar and lunar eclipses, planets retrograde and terrestrial events impacted by the cosmic alignment of stars and planets are interested in knowing the time of their happening. The current planetary positions are then used in preparing maps of stars in the sky, and telescopes. The printed Planetary Ephemeris, though obsolete, is still in use in some parts of the world where the computers and electronic devices are still not widely used or haven’t been made available to the public at large.Ī scientific Ephemeris shows planetary positions’ current overview using the spherical polar coordinate system, a system used by mathematicians and physicians on a variety of applications to plot the trajectory of a moving body. With the advancement in technology, Ephemeris today is calculated electronically with the help of mathematical models based on the movement of celestial bodies via-a-vis that of the Earth. Such a diary was, therefore, termed as Planetary Ephemeris. As a result, such a tabular compilation would usually last for a day only to be replaced by new values on the following day.

These attributes tend to change from time to time with the change in the trajectory of the celestial bodies. Since ancient times, the current planetary positions on a given date (Grah position or Grah Stithi) have been assigned printed values in a tabular format. Ephemeris meaning in Latin is diary or journal.

Kundali with degree of planets