Apparent retrograde motion

As Earth (blue) passes a superior planet, such as Mars (red), the superior planet will temporarily appear to reverse its motion across the sky. Retrograde motion is the apparent motion of a planet to move in a direction opposite to that of other bodies within its system, as observed from a particular vantage point. Direct motion or prograde motion is motion in the same direction as other bodies. While the terms direct and prograde are equivalent in this context, the former is the traditional term in astronomy. Prograde was first seen in an abstract of an astronomy-related professional article in 1963.[1] Etymology[edit] The term retrograde is from the Latin word retrogradus – "backward-step", the affix retro- meaning "backwards" and gradi to step or "to go". "Mercury in retrograde" is an example of the term used as a noun for retrograde motion. Apparent motion[edit] T1, T2, ..., T5 - positions of Earth P1, P2, ..., P5 - positions of a planet A1, A2, ..., A5 - projection to celestial sphere

http://en.wikipedia.org/wiki/Apparent_retrograde_motion

Retrograde planets: planetary stations 2009, 2010, 2011, 2012, 2013, 2014 When planets change their direction of movement in the sky, conditions on Earth change as well. If the degree of where this change of movement takes place is connected to an astrological element of your chart, you may expect changes in the corresponding area of life. Below is a list of planetary stations during the years to come. Watch closely how these events interconnect with your inner and outer life. Retrograde Planets in Astrology Retrograde planets are the planets that APPEAR to move backwards in the sky. All the planets have fixed direction for revolution. Therefore, Moving back and forth is simply out of question.

Major Planetary Aspects for 2010 Through 2013 Major Planetary Aspects for 2010 2011 and 2012 -2013 2010 is a number 3 Year a year for fun and learning. Personal Planets are: Sun (the light) never goes retrograde Moon Represents the past and emotions and never goes retrograde Mercury represents ideas (goes retrograde about 3 times a year) Mercury often will back into the sign before where it went retrograde shifting and changing the energies majorly of this time of rethinking, replanning, regrouping energetically which is what mercury retrograde is best used for

2012 - 2014 Chiron -> Saturn -> Jupiter in Retrograde Motion, Direct Motion and Ingress Dates Below is a table for Jupiter, Saturn and Chiron Ingress & Retrograde dates, times (UTC), and zodiac signs for the next few years. Many people wonder when will the planet be in retrograde motion. A countdown has been included for each planet. For more information describing the color codes and abbreviations, refer to the main planet ingress page.

Related: Pluto Retrogrades