The planetsappear to reverse.
A modern atlas of planetary retrograde cycles — what is happening in the sky right now, why it happens, and what it has meant to humans across millennia.
Begin the tourThe sky at this moment
Each planet is either moving direct (eastward against the stars) or retrograde (westward). The status updates live as Earth catches up to — or falls behind — each one in its orbit.
Why does a planet appear to reverse?
Retrograde motion is an illusion of perspective. Earth is closer to the Sun than the outer planets, so it overtakes them once each orbit. As we pass, the outer planet briefly appears to move backward against the distant stars. Scrub the timeline and watch the loop form.
Apparent longitude of Mars
as seen from Earth, against the fixed stars
The horizontal axis is time (months). The vertical axis is the planet's position against the fixed stars, measured in degrees of ecliptic longitude. When the line moves upward, the planet is in direct motion. When it dips downward, Earth is passing it — that is retrograde.
Retrogrades overlap. Patterns emerge.
Each bar marks a planet's retrograde window. The outer planets (Jupiter, Saturn, Uranus, Neptune, Pluto) all retrograde annually for months at a time; the inner planets (Mercury, Venus, Mars) loop briefly but more dramatically. Notice how Mercury's three yearly cycles cluster, and how summer 2025 sees nearly every planet reverse at once.
One planet at a time
Each planet has its own rhythm of reversal — set by its orbital period and its distance from Earth. Click any row to expand the full picture: the astronomy, the traditional archetype, the themes, and the upcoming schedule.
The innermost planet, swift Mercury laps Earth roughly three times each year. Because it orbits so close to the Sun, its apparent backward loop is brief and frequent — and only visible near the horizon at dawn or dusk.
- Orbital period
- 88 days
- Frequency
- 3× per year
- Avg duration
- 24 days
In the Western astrological tradition, mercury symbolises the messenger. During retrograde, its themes are said to turn inward for review rather than vanish.
- Jul 18 – Aug 11, 2025Leo
- Nov 9 – Nov 29, 2025Sagittarius
- Feb 26 – Mar 20, 2026Pisces / Aries
- Jun 29 – Jul 23, 2026Cancer / Leo
An illusion, not a reversal
Ancient sky-watchers saw planets loop backwards and struggled to explain it. The geocentric model invented epicycles — wheels on wheels — to save the appearances. The heliocentric model, advanced by Copernicus in 1543 and confirmed by Kepler and Galileo, revealed retrograde motion as a natural consequence of Earth's own motion. Three observations explain everything.
All planets orbit the Sun
Earth and every other planet travel around the Sun in roughly the same flat plane, each at its own speed. Mercury sprints around in 88 days. Neptune crawls round in 165 years. From above, the motion is simple and ordered.
Earth laps the slower planets
Earth orbits the Sun faster than every planet outside its orbit. Once each year it catches up to Jupiter, Saturn, Uranus, Neptune, and Pluto — overtaking them like a runner passing a slower competitor on the inside lane.
The shift in perspective creates the loop
As Earth pulls alongside and then ahead of an outer planet, the line of sight from Earth to that planet sweeps backward briefly before resuming forward motion. The planet appears to trace a small loop against the fixed stars — but it never actually reversed direction.
A useful analogy
Imagine two trains running on parallel tracks. You are on the faster train. As you overtake the slower one, out the window the slower train briefly appears to move backward, even though both trains are moving forward the entire time. The planets do the same dance — at a cosmic scale, across hundreds of millions of kilometres.
The faster "Earth" train overtakes the slower "Mars" train. To a passenger on Earth, Mars briefly appears to slip backward.
Astronomy & astrology, side by side
Retrograde motion is a measurable physical phenomenon — but it is also one of the oldest stories humans tell about the sky. We treat both as legitimate traditions of meaning. Below, three lenses on the same observation.
Astronomy — what is actually happening
- Retrograde motion is a perspective effect, not a real reversal.
- It is predictable and computable: the instant a planet begins retrograde is called its station, and is published years in advance by NASA JPL and other observatories.
- The apparent loop is small — usually only a few degrees of sky — but is real and observable with the naked eye for Mars, Jupiter, and Saturn.
- The size and shape of the loop depend on the relative inclinations and speeds of the two orbits.
Astrology — what it has been taken to mean
- In Western astrology, retrograde periods are read as times when a planet's domain turns inward for review rather than outward for action.
- Mercury retrograde is the most culturally visible: a shorthand for miscommunications, delayed travel, and revisited conversations.
- Outer-planet retrogrades (Jupiter, Saturn, Uranus, Neptune, Pluto) are slower and often read as collective rather than personal.
- Different traditions (Vedic/Jyotish, Hellenistic, modern psychological) interpret retrograde status differently — there is no single doctrine.
History — how humans have made sense of it
- Babylonian astronomers recorded planetary loops as early as the 2nd millennium BCE and devised arithmetic tables to predict them.
- Claudius Ptolemy (c. 150 CE) explained retrograde with epicycles — small circles superimposed on a planet's main orbit around Earth.
- Copernicus (1543) placed the Sun at the centre and made retrograde a natural consequence of Earth's motion, eliminating the need for most epicycles.
- Kepler (1609) refined the orbits as ellipses; his Rudolphine Tables predicted planetary positions — including retrogrades — to unprecedented accuracy.
Our editorial position: we report the astronomy as fact and the astrology as heritage. Both have shaped how humans have looked at the night sky for thousands of years — and both deserve to be understood on their own terms.
What was retrograde on…
Pick any date — your birthday, an anniversary, a historical event. See which planets were in apparent retrograde at noon UTC that day, and how long each had been reversing.
Showing sky at Saturday, June 21, 2025