2027 Forecast

Mars retrograde 1940

There was no Mars retrograde in 1940: the planet stayed direct all year — the previous retrograde ended on August 23, 1939 in Capricorn, and the next began on September 6, 1941 in Aries.

Retrograde in 1940
None direct all year
Previous direct station
Aug 23, 1939 11:59 PM UTC
Next retrograde station
Sep 6, 1941 6:35 PM UTC
Gap between loops
745 days
Mars Retrograde 1940: None — Next Starts Sep 6, 1941

Mars’s path through 1940, day by day

Apparent position of Mars against the zodiac, 1940
Apparent position of Mars against the zodiac, 1940. Mars starts 1940 at 27°07′ Pisces and ends it at 26°36′ Scorpio — 239.5° of net progress, all of it forward. Fastest day: Jan 20, 0.68° forward. PiscesAriesTaurusGeminiCancerLeoVirgoLibraScorpioJanFebMarAprMayJunJulAugSepOctNovDecSource: JPL orbital elements; stations NASA JPL DE440astrohot.com Apparent position of Mars against the zodiac, 1940. Mars starts 1940 at 27°07′ Pisces and ends it at 26°36′ Scorpio — 239.5° of net progress, all of it forward. Fastest day: Jan 20, 0.68° forward. PiscesAriesTaurusGeminiCancerLeoVirgoLibraScorpioJanFebMarAprMayJunJulAugSepOctNovDecSource: JPL orbital elements; stations NASA JPL DE440astrohot.com
Retrograde Shadow R — stations retrograde · D — stations direct

Mars starts 1940 at 27°07′ Pisces and ends it at 26°36′ Scorpio — 239.5° of net progress, all of it forward. Fastest day: Jan 20, 0.68° forward.

Exact times

The Mars stations either side of 1940: exact times in your city

Mars turned retrograde at 6:35 PM UTC on September 6, 1941 at 23°43′ Aries — 2:35 PM in Santiago, 2:35 PM in New York, 7:35 PM in London and 3:35 AM on September 7 in Tokyo.

City Turns direct · Aug 23, 1939 Turns retrograde · Sep 6, 1941
UTC Wed, Aug 23, 1939 · 23°55′ Capricorn Sat, Sep 6, 1941 · 23°43′ Aries
Honolulu United States 1:29 PM Wed, Aug 23, 1939 · UTC−10:30 8:05 AM Sat, Sep 6, 1941 · UTC−10:30
Anchorage United States 1:59 PM Wed, Aug 23, 1939 · UTC−10 8:35 AM Sat, Sep 6, 1941 · UTC−10
Los Angeles United States 3:59 PM Wed, Aug 23, 1939 · UTC−8 10:35 AM Sat, Sep 6, 1941 · UTC−8
Phoenix United States 4:59 PM Wed, Aug 23, 1939 · UTC−7 11:35 AM Sat, Sep 6, 1941 · UTC−7
Denver United States 4:59 PM Wed, Aug 23, 1939 · UTC−7 11:35 AM Sat, Sep 6, 1941 · UTC−7
Chicago United States 6:59 PM Wed, Aug 23, 1939 · UTC−5 1:35 PM Sat, Sep 6, 1941 · UTC−5
Mexico City Mexico 5:59 PM Wed, Aug 23, 1939 · UTC−6 12:35 PM Sat, Sep 6, 1941 · UTC−6
New York United States 7:59 PM Wed, Aug 23, 1939 · UTC−4 2:35 PM Sat, Sep 6, 1941 · UTC−4
Toronto Canada 7:59 PM Wed, Aug 23, 1939 · UTC−4 2:35 PM Sat, Sep 6, 1941 · UTC−4
Bogotá Colombia 6:59 PM Wed, Aug 23, 1939 · UTC−5 1:35 PM Sat, Sep 6, 1941 · UTC−5
Lima Peru 6:59 PM Wed, Aug 23, 1939 · UTC−5 1:35 PM Sat, Sep 6, 1941 · UTC−5
Caracas Venezuela 7:29 PM Wed, Aug 23, 1939 · UTC−4:30 2:05 PM Sat, Sep 6, 1941 · UTC−4:30
Santiago Chile 7:59 PM Wed, Aug 23, 1939 · UTC−4 2:35 PM Sat, Sep 6, 1941 · UTC−4
Buenos Aires Argentina 7:59 PM Wed, Aug 23, 1939 · UTC−4 2:35 PM Sat, Sep 6, 1941 · UTC−4
São Paulo Brazil 8:59 PM Wed, Aug 23, 1939 · UTC−3 3:35 PM Sat, Sep 6, 1941 · UTC−3
Reykjavík Iceland 11:59 PM Wed, Aug 23, 1939 · UTC 6:35 PM Sat, Sep 6, 1941 · UTC
London United Kingdom 12:59 AM Thu, Aug 24, 1939 · UTC+1 7:35 PM Sat, Sep 6, 1941 · UTC+1
Lagos Nigeria 12:59 AM Thu, Aug 24, 1939 · UTC+1 7:35 PM Sat, Sep 6, 1941 · UTC+1
Paris France 12:59 AM Thu, Aug 24, 1939 · UTC+1 8:35 PM Sat, Sep 6, 1941 · UTC+2
Berlin Germany 12:59 AM Thu, Aug 24, 1939 · UTC+1 8:35 PM Sat, Sep 6, 1941 · UTC+2
Johannesburg South Africa 1:59 AM Thu, Aug 24, 1939 · UTC+2 8:35 PM Sat, Sep 6, 1941 · UTC+2
Cairo Egypt 1:59 AM Thu, Aug 24, 1939 · UTC+2 9:35 PM Sat, Sep 6, 1941 · UTC+3
Athens Greece 1:59 AM Thu, Aug 24, 1939 · UTC+2 8:35 PM Sat, Sep 6, 1941 · UTC+2
Istanbul Turkey 1:59 AM Thu, Aug 24, 1939 · UTC+2 9:35 PM Sat, Sep 6, 1941 · UTC+3
Moscow Russia 2:59 AM Thu, Aug 24, 1939 · UTC+3 9:35 PM Sat, Sep 6, 1941 · UTC+3
Nairobi Kenya 2:44 AM Thu, Aug 24, 1939 · UTC+2:45 9:20 PM Sat, Sep 6, 1941 · UTC+2:45
Tehran Iran 3:29 AM Thu, Aug 24, 1939 · UTC+3:30 10:05 PM Sat, Sep 6, 1941 · UTC+3:30
Dubai United Arab Emirates 3:59 AM Thu, Aug 24, 1939 · UTC+4 10:35 PM Sat, Sep 6, 1941 · UTC+4
Karachi Pakistan 5:29 AM Thu, Aug 24, 1939 · UTC+5:30 12:05 AM Sun, Sep 7, 1941 · UTC+5:30
New Delhi India 5:29 AM Thu, Aug 24, 1939 · UTC+5:30 12:05 AM Sun, Sep 7, 1941 · UTC+5:30
Kathmandu Nepal 5:29 AM Thu, Aug 24, 1939 · UTC+5:30 12:05 AM Sun, Sep 7, 1941 · UTC+5:30
Dhaka Bangladesh 5:52 AM Thu, Aug 24, 1939 · UTC+5:53 12:28 AM Sun, Sep 7, 1941 · UTC+5:53
Bangkok Thailand 6:59 AM Thu, Aug 24, 1939 · UTC+7 1:35 AM Sun, Sep 7, 1941 · UTC+7
Jakarta Indonesia 7:29 AM Thu, Aug 24, 1939 · UTC+7:30 2:05 AM Sun, Sep 7, 1941 · UTC+7:30
Singapore 7:19 AM Thu, Aug 24, 1939 · UTC+7:20 2:05 AM Sun, Sep 7, 1941 · UTC+7:30
Beijing China 7:59 AM Thu, Aug 24, 1939 · UTC+8 3:35 AM Sun, Sep 7, 1941 · UTC+9
Manila Philippines 7:59 AM Thu, Aug 24, 1939 · UTC+8 2:35 AM Sun, Sep 7, 1941 · UTC+8
Perth Australia 7:59 AM Thu, Aug 24, 1939 · UTC+8 2:35 AM Sun, Sep 7, 1941 · UTC+8
Seoul South Korea 8:59 AM Thu, Aug 24, 1939 · UTC+9 3:35 AM Sun, Sep 7, 1941 · UTC+9
Tokyo Japan 8:59 AM Thu, Aug 24, 1939 · UTC+9 3:35 AM Sun, Sep 7, 1941 · UTC+9
Adelaide Australia 9:29 AM Thu, Aug 24, 1939 · UTC+9:30 4:05 AM Sun, Sep 7, 1941 · UTC+9:30
Brisbane Australia 9:59 AM Thu, Aug 24, 1939 · UTC+10 4:35 AM Sun, Sep 7, 1941 · UTC+10
Sydney Australia 9:59 AM Thu, Aug 24, 1939 · UTC+10 4:35 AM Sun, Sep 7, 1941 · UTC+10
Auckland New Zealand 11:29 AM Thu, Aug 24, 1939 · UTC+11:30 6:35 AM Sun, Sep 7, 1941 · UTC+12

Stations from the NASA JPL DE440 ephemeris. Swiss Ephemeris agrees on every Mars station 1900–2050: all within a minute. Local times: IANA time zones, to the minute.

Mars in 1940: a year between two loops

745 days separate the end of one Mars retrograde from the start of the next, and 1940 falls entirely inside that stretch. Mars turns back once every 779.94 days — longer than a calendar year — and each loop is over in weeks, so now and then a whole year passes between two of them.

The loops themselves are on the 1939 and 1941 pages.

Computed from the actual motion

The nearest Mars retrogrades either side of 1940

Previous

1939 Ended August 23, 1939 after 62 days, moving back 10.79° through the zodiac.

Next

1941 Begins September 6, 1941 and runs 65 days.

Gap across 1940

2 years between the two — long enough for a whole calendar year to fall inside it with nothing to report.

Both dates are computed from the planet’s apparent motion, not taken from a table. A retrograde begins the moment its daily movement against the stars turns negative, and that moment is findable to the hour.

Computed for 1940

Mars through the zodiac in 1940

Every sign Mars occupies during 1940, with the dates it enters and leaves. A sign that appears twice means the planet backed into the previous sign during a retrograde and crossed again.

Mars in Pisces From Jan 1 – Jan 4
Mars in Aries Jan 4 – Feb 17
Mars in Taurus Feb 17 – Apr 1
Mars in Gemini Apr 1 – May 17
Mars in Cancer May 17 – Jul 3
Mars in Leo Jul 3 – Aug 19
Mars in Virgo Aug 19 – Oct 5
Mars in Libra Oct 5 – Nov 20
Mars in Scorpio Nov 20 – Dec 31 and beyond

9 segments in 1940. Dates from NASA JPL’s DE440 ephemeris.

1940 at a glance

Every other retrograde in 1940

Uranus in Taurus Aug 28, 1939 – Jan 26, 1940 · 151 days
Pluto in Leo Nov 4, 1939 – Apr 13, 1940 · 161 days
Neptune in Virgo Dec 28, 1939 – Jun 3, 1940 · 158 days
Mercury in Aries Mar 6, 1940 – Mar 29, 1940 · 23 days
Venus in Cancer Jun 5, 1940 – Jul 18, 1940 · 43 days
Mercury in Leo Jul 8, 1940 – Aug 1, 1940 · 24 days
Saturn in Taurus Aug 27, 1940 – Jan 9, 1941 · 135 days
Uranus in Taurus Sep 1, 1940 – Jan 30, 1941 · 151 days
Jupiter in Taurus Sep 4, 1940 – Dec 31, 1940 · 118 days
Mercury in Scorpio Nov 1, 1940 – Nov 21, 1940 · 20 days
Pluto in Leo Nov 5, 1940 – Apr 14, 1941 · 161 days
Neptune in Virgo Dec 30, 1940 – Jun 5, 1941 · 158 days
← 1939 Mars retrograde in 1939. All Mars retrogrades Averages, shadow periods and the sign distribution over fifty years. 1941 → Mars retrograde in 1941.

Cite this page

AstroHot. “Mars Retrograde 1940: None — Next Starts Sep 6, 1941.” Accessed November 1, 2026. https://astrohot.com/retrograde/mars/1940/

For Wikipedia {{cite web |title=Mars Retrograde 1940: None — Next Starts Sep 6, 1941 |url=https://astrohot.com/retrograde/mars/1940/ |website=AstroHot |access-date=2026-11-01}}