Retrograde calendar 2020
In 2020 Mercury is retrograde three times: 17 Feb to 10 Mar (Pisces back into Aquarius), 18 Jun to 12 Jul (in Cancer) and 14 Oct to 3 Nov (Scorpio back into Libra).
| Planet | Turns retrograde | Turns direct | From, to | Shadow |
|---|---|---|---|---|
| Mercury | Mon 17 Feb, 00:54 | Tue 10 Mar, 03:48 | 12°53′ Pisces → 28°12′ Aquarius | 2 Feb to 30 Mar |
| Pluto | Sat 25 Apr, 18:53 | Sun 4 Oct, 13:32 | 24°59′ Capricorn → 22°29′ Capricorn | 4 Jan to 25 Jan 2021 |
| Saturn | Mon 11 May, 04:09 | Tue 29 Sep, 05:11 | 1°57′ Aquarius → 25°20′ Capricorn | 3 Feb to 3 Jan 2021 |
| Venus | Wed 13 May, 06:45 | Thu 25 Jun, 06:48 | 21°50′ Gemini → 5°20′ Gemini | 9 Apr to 29 Jul |
| Jupiter | Thu 14 May, 14:32 | Sun 13 Sep, 00:40 | 27°14′ Capricorn → 17°24′ Capricorn | 18 Feb to 6 Dec |
| Mercury | Thu 18 Jun, 04:58 | Sun 12 Jul, 08:26 | 14°45′ Cancer → 5°29′ Cancer | 2 Jun to 26 Jul |
| Neptune | Tue 23 Jun, 04:32 | Sun 29 Nov, 00:36 | 20°57′ Pisces → 18°09′ Pisces | 2 Mar to 19 Mar 2021 |
| Uranus | Sat 15 Aug, 14:26 | Thu 14 Jan 2021, 08:35 | 10°41′ Taurus → 6°43′ Taurus | 28 Apr to 1 May 2021 |
| Mars | Wed 9 Sep, 22:22 | Sat 14 Nov, 00:35 | 28°08′ Aries → 15°13′ Aries | 25 Jul to 2 Jan 2021 |
| Mercury | Wed 14 Oct, 01:05 | Tue 3 Nov, 17:49 | 11°40′ Scorpio → 25°54′ Libra | 23 Sep to 19 Nov |
Tropical zodiac · geocentric, apparent positions · stations from the Swiss Ephemeris, checked against NASA JPL DE440 · times in UTC
Go deeper: stations, shadows and why sites disagree by a day
Retrograde. Seen from Earth, a planet sometimes appears to stop and move backwards through the zodiac. Nothing reverses in space: Earth is overtaking the planet, or being overtaken by it. The moments it stops are its stations; the time given is when its speed along the zodiac passes through zero.
Shadow. Before a retrograde, the planet crosses the degree where it will later turn direct; after it, it passes the degree where it turned retrograde. Between those two crossings it goes over the same stretch of sky three times. That span is the shadow.
A day’s difference. A station at 23:30 in London falls on the next day in Berlin. Calendars printed for one time zone are a day off for others; this page uses yours. Slow planets also barely move near a station, so sources that round differently can disagree by an hour for Jupiter to Pluto.