Ephemeris Generator

To open the Ephemeris Generator screen, go to the Lists/Ephemeris/Ephemeris Generator... menu. The Ephemeris Generator window will show up.

• Start and End Dates. Enter the date from which you want the Ephemeris to start and the date at which you would like Ephemeris to finish.
• Interval. This will set the frequency at which ephemeris dates will be shown.
• Time Units. You can set the time unit at which ephemeris will be incremented. This field can be set to Minutes, Hours, Days, Weeks, Months, and Years.
  
• Coordinates Systems. You can set the Coordinate System to Geocentric, Topocentric, Heliocentric, and Galactic coordinates value.
• Coordinates. This option allows you to define how results will be presented - in Ecliptic (longitude and latitude) or Equatorial (RA and declination) coordinates.
• Zodiac. Use this field to change the Zodiac from Tropical (default) to Sidereal. For all possible Ayanamsa values, please see the Ayanamsa values list.
• True Node. If checked, the True North Node will be calculated, if unchecked, then Mean Node will be calculated instead. Please note that setting this field will override default User Settings.
• Time Zone.
You can select the TimeZone name or set the time zone offset in +/-HH:MM:SS format.
• Click the OK button. The ephemeris data will be shown in the Ephemeris Table.

Notes:

1. The number of displayed rows (dates) will always be limited to 35 irrespective of time unit and step settings.
2. Galactic coordinates system is based on the Galactic Center as defined by Harlow Shapley. Precession is taken into consideration for calculating longitude and latitude of the Galactic center.
3. When using Galactic coordinates system, the Galactic Center assumed to be a fixed point and so the speed calculations will be identical to Geocentric system.