Retrograde Cycles this Year Back to This Month’s EphemerisĮphemeris graphics from the excellent Io Software. If there is a Solar or Lunar eclipse in that particular month, you’ll find its date and positions in this table below the lunar phases. The lower right table of the ephemeris under the title, “Lunar Phases & Eclipses,” lists the lunar phases (New, First Quarter, Full, and Last Quarter) dates, times, and zodiacal positions. These are separate from planetary ingresses due to the frequency that the Moon changes signs. Click here to see this ephemeris and this month’s Asteroid Ephemeris.

September 2021 Monthly Planetary Ephemeris. you can download the latest GPS Precise Ephemeris data and much more. Here is the current month’s ephemeris table, showing the day-by-day positions by sign and degree of the Sun, Moon, Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto. The lower middle table shows the lunar sign ingresses (or Moon sign changes). The GPS precise orbits are derived using 24 hour data segments from the global GPS. These appear only if there is a directional change. Sign changes are displayed in the table under the ephemeris under the title “Ingresses.” The “Stations” section shows planets and precies dates and times when they change direction, either retrograde (marked with an Rx) or direct (marked with a D). The lower left table shows sign changes and retrograde/direct activity. This damping term is not suitable for extrapolation more than several centuries into the past. The dynamical model for DE440 includes a frictional damping between the fluid core and the elastic mantle. The D symbol will appear when that same planet turns direct. The latest JPL ephemeris with fully consistent treatment of planetary and lunar laser ranging data is DE440 (Park et al., 2021). Retrograde planets are marked with a red Rx symbol.

The ephemerides above display each planet or point by degree and sign (longitude) at Midnight in the Eastern time zone at a daily rate. The tables in the above ephemeris explained: PDF Version of this 2021 Ephemeris: Ephemeris2021 *The ephemerides above were produced using the excellent Io Edition software. December 2021 Monthly Planetary Ephemeris

Current ephemeris data