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Questions and bridges

How Many Times a Year Is Mercury Retrograde?

Mercury usually appears to move retrograde three times a year, occasionally four, with each period lasting about three weeks. It is an optical effect of our viewpoint from Earth, not a real reversal of the planet.

The short answer

Mercury turns retrograde (appears to move backward against the stars) usually three times a year, and in some years four. Each stretch lasts about three weeks, so altogether roughly two months of the year.

Why it happens

Mercury is the closest planet to the Sun and orbits faster than Earth. Because it moves faster, Mercury periodically overtakes Earth, passing between us and the Sun. Around that time, from our point of view, it seems to pause and slip backward for a while. It is a bit like overtaking on a motorway: seen from one car, the other briefly seems to slide backward against the scenery, though both cars are moving forward. More on the effect is in retrograde motion and Mercury.

What tradition says

In the astrological tradition, Mercury stands for thinking, speech and the exchange of information. A retrograde phase is therefore seen as a time to review, revisit and communicate with extra care: reread, clarify, return to something postponed. This is a cultural reading offered for inspiration, not a proven cause of events, and there is no reason for worry. See also Mercury retrograde.

Where to find the dates

Exact dates for each year are in the retrograde calendar on Astronativa.

Questions and answers

How long does a Mercury retrograde last?

About three weeks, with the exact length varying slightly from one occasion to the next.

Does Mercury really move backward?

No. It is an apparent motion caused by the different orbital speeds of Earth and Mercury.

Related articles

Retrograde Motion: Why Planets Seem to Move BackwardMercury: The Planet Closest to the SunMercury Retrograde: Tradition, Facts and a Calm ViewRetrograde Planets in the Astrological TraditionMercury in Astrology

Sources

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