2027 Forecast

Mars retrograde 1990

Mars retrograde 1990: 1 period, 72 days inside the year — 19.8% of 1990. Mars turned retrograde at 7:30 PM UTC on October 20 at 14°33′ Gemini and turned direct at 12:49 PM UTC on January 1, 1991 at 27°45′ Taurus.

Turns retrograde
Oct 20 7:30 PM UTC
Retrograde in 1990
72 days 19.8% of the year
Sign
Gemini retreats 16.81°
Mars Retrograde 1990 Dates: From Oct 20

Mars’s path through 1990, day by day

Apparent position of Mars against the zodiac, Jan 1, 1990 – Jan 7, 1991
Apparent position of Mars against the zodiac, Jan 1, 1990 – Jan 7, 1991. Mars starts 1990 at 9°30′ Sagittarius and ends it at 27°37′ Taurus — 168.1° of net progress: 184.9° forward, 16.8° given back. The loop retraces 16.81° in 73 days, from 14°33′ Gemini on Oct 20 back to 27°45′ Taurus on Jan 1 1991. Fastest day: Apr 18, 0.75° forward; fastest backward: Nov 25, 0.38°. Counting the shadows, 127 days of 1990 sit inside a retrograde window. Pre-retrograde shadow: Aug 27, 1990 – Oct 20, 1990Post-retrograde shadow: Jan 1, 1991 – Mar 2, 1991Retrograde: Oct 20, 1990 – Jan 1, 1991SagittariusCapricornAquariusPiscesAriesTaurusGemini1991Stations retrograde Oct 20, 1990, 7:30 PM UTC, 14°33′ GeminiR Oct 20Stations direct Jan 1, 1991, 12:49 PM UTC, 27°45′ TaurusD Jan 1JanFebMarAprMayJunJulAugSepOctNovDecSource: JPL orbital elements; stations NASA JPL DE440astrohot.com Apparent position of Mars against the zodiac, Jan 1, 1990 – Jan 7, 1991. Mars starts 1990 at 9°30′ Sagittarius and ends it at 27°37′ Taurus — 168.1° of net progress: 184.9° forward, 16.8° given back. The loop retraces 16.81° in 73 days, from 14°33′ Gemini on Oct 20 back to 27°45′ Taurus on Jan 1 1991. Fastest day: Apr 18, 0.75° forward; fastest backward: Nov 25, 0.38°. Counting the shadows, 127 days of 1990 sit inside a retrograde window. Pre-retrograde shadow: Aug 27, 1990 – Oct 20, 1990Post-retrograde shadow: Jan 1, 1991 – Mar 2, 1991Retrograde: Oct 20, 1990 – Jan 1, 1991SagittariusCapricornAquariusPiscesAriesTaurusGemini1991Stations retrograde Oct 20, 1990, 7:30 PM UTC, 14°33′ GeminiR Oct 20Stations direct Jan 1, 1991, 12:49 PM UTC, 27°45′ TaurusD Jan 1JanFebMarAprMayJunJulAugSepOctNovDecSource: JPL orbital elements; stations NASA JPL DE440astrohot.com
Retrograde Shadow R — stations retrograde · D — stations direct

Mars starts 1990 at 9°30′ Sagittarius and ends it at 27°37′ Taurus — 168.1° of net progress: 184.9° forward, 16.8° given back. The loop retraces 16.81° in 73 days, from 14°33′ Gemini on Oct 20 back to 27°45′ Taurus on Jan 1 1991. Fastest day: Apr 18, 0.75° forward; fastest backward: Nov 25, 0.38°. Counting the shadows, 127 days of 1990 sit inside a retrograde window.

Exact times

Mars retrograde 1990: exact times in your city

Mars turned retrograde at 7:30 PM UTC on October 20, 1990 at 14°33′ Gemini — 4:30 PM in Santiago, 3:30 PM in New York, 8:30 PM in London and 4:30 AM on October 21 in Tokyo.

City Turns retrograde · Oct 20, 1990 Turns direct · Jan 1, 1991
UTC Sat, Oct 20, 1990 · 14°33′ Gemini Tue, Jan 1, 1991 · 27°45′ Taurus
Honolulu United States 9:30 AM Sat, Oct 20, 1990 · UTC−10 2:49 AM Tue, Jan 1, 1991 · UTC−10
Anchorage United States 11:30 AM Sat, Oct 20, 1990 · UTC−8 3:49 AM Tue, Jan 1, 1991 · UTC−9
Los Angeles United States 12:30 PM Sat, Oct 20, 1990 · UTC−7 4:49 AM Tue, Jan 1, 1991 · UTC−8
Phoenix United States 12:30 PM Sat, Oct 20, 1990 · UTC−7 5:49 AM Tue, Jan 1, 1991 · UTC−7
Denver United States 1:30 PM Sat, Oct 20, 1990 · UTC−6 5:49 AM Tue, Jan 1, 1991 · UTC−7
Chicago United States 2:30 PM Sat, Oct 20, 1990 · UTC−5 6:49 AM Tue, Jan 1, 1991 · UTC−6
Mexico City Mexico 1:30 PM Sat, Oct 20, 1990 · UTC−6 6:49 AM Tue, Jan 1, 1991 · UTC−6
New York United States 3:30 PM Sat, Oct 20, 1990 · UTC−4 7:49 AM Tue, Jan 1, 1991 · UTC−5
Toronto Canada 3:30 PM Sat, Oct 20, 1990 · UTC−4 7:49 AM Tue, Jan 1, 1991 · UTC−5
Bogotá Colombia 2:30 PM Sat, Oct 20, 1990 · UTC−5 7:49 AM Tue, Jan 1, 1991 · UTC−5
Lima Peru 2:30 PM Sat, Oct 20, 1990 · UTC−5 7:49 AM Tue, Jan 1, 1991 · UTC−5
Caracas Venezuela 3:30 PM Sat, Oct 20, 1990 · UTC−4 8:49 AM Tue, Jan 1, 1991 · UTC−4
Santiago Chile 4:30 PM Sat, Oct 20, 1990 · UTC−3 9:49 AM Tue, Jan 1, 1991 · UTC−3
Buenos Aires Argentina 4:30 PM Sat, Oct 20, 1990 · UTC−3 10:49 AM Tue, Jan 1, 1991 · UTC−2
São Paulo Brazil 4:30 PM Sat, Oct 20, 1990 · UTC−3 10:49 AM Tue, Jan 1, 1991 · UTC−2
Reykjavík Iceland 7:30 PM Sat, Oct 20, 1990 · UTC 12:49 PM Tue, Jan 1, 1991 · UTC
London United Kingdom 8:30 PM Sat, Oct 20, 1990 · UTC+1 12:49 PM Tue, Jan 1, 1991 · UTC
Lagos Nigeria 8:30 PM Sat, Oct 20, 1990 · UTC+1 1:49 PM Tue, Jan 1, 1991 · UTC+1
Paris France 8:30 PM Sat, Oct 20, 1990 · UTC+1 1:49 PM Tue, Jan 1, 1991 · UTC+1
Berlin Germany 8:30 PM Sat, Oct 20, 1990 · UTC+1 1:49 PM Tue, Jan 1, 1991 · UTC+1
Johannesburg South Africa 9:30 PM Sat, Oct 20, 1990 · UTC+2 2:49 PM Tue, Jan 1, 1991 · UTC+2
Cairo Egypt 9:30 PM Sat, Oct 20, 1990 · UTC+2 2:49 PM Tue, Jan 1, 1991 · UTC+2
Athens Greece 9:30 PM Sat, Oct 20, 1990 · UTC+2 2:49 PM Tue, Jan 1, 1991 · UTC+2
Istanbul Turkey 9:30 PM Sat, Oct 20, 1990 · UTC+2 2:49 PM Tue, Jan 1, 1991 · UTC+2
Moscow Russia 10:30 PM Sat, Oct 20, 1990 · UTC+3 3:49 PM Tue, Jan 1, 1991 · UTC+3
Nairobi Kenya 10:30 PM Sat, Oct 20, 1990 · UTC+3 3:49 PM Tue, Jan 1, 1991 · UTC+3
Tehran Iran 11:00 PM Sat, Oct 20, 1990 · UTC+3:30 4:19 PM Tue, Jan 1, 1991 · UTC+3:30
Dubai United Arab Emirates 11:30 PM Sat, Oct 20, 1990 · UTC+4 4:49 PM Tue, Jan 1, 1991 · UTC+4
Karachi Pakistan 12:30 AM Sun, Oct 21, 1990 · UTC+5 5:49 PM Tue, Jan 1, 1991 · UTC+5
New Delhi India 1:00 AM Sun, Oct 21, 1990 · UTC+5:30 6:19 PM Tue, Jan 1, 1991 · UTC+5:30
Kathmandu Nepal 1:15 AM Sun, Oct 21, 1990 · UTC+5:45 6:34 PM Tue, Jan 1, 1991 · UTC+5:45
Dhaka Bangladesh 1:30 AM Sun, Oct 21, 1990 · UTC+6 6:49 PM Tue, Jan 1, 1991 · UTC+6
Bangkok Thailand 2:30 AM Sun, Oct 21, 1990 · UTC+7 7:49 PM Tue, Jan 1, 1991 · UTC+7
Jakarta Indonesia 2:30 AM Sun, Oct 21, 1990 · UTC+7 7:49 PM Tue, Jan 1, 1991 · UTC+7
Singapore 3:30 AM Sun, Oct 21, 1990 · UTC+8 8:49 PM Tue, Jan 1, 1991 · UTC+8
Beijing China 3:30 AM Sun, Oct 21, 1990 · UTC+8 8:49 PM Tue, Jan 1, 1991 · UTC+8
Manila Philippines 3:30 AM Sun, Oct 21, 1990 · UTC+8 8:49 PM Tue, Jan 1, 1991 · UTC+8
Perth Australia 3:30 AM Sun, Oct 21, 1990 · UTC+8 8:49 PM Tue, Jan 1, 1991 · UTC+8
Seoul South Korea 4:30 AM Sun, Oct 21, 1990 · UTC+9 9:49 PM Tue, Jan 1, 1991 · UTC+9
Tokyo Japan 4:30 AM Sun, Oct 21, 1990 · UTC+9 9:49 PM Tue, Jan 1, 1991 · UTC+9
Adelaide Australia 5:00 AM Sun, Oct 21, 1990 · UTC+9:30 11:19 PM Tue, Jan 1, 1991 · UTC+10:30
Brisbane Australia 5:30 AM Sun, Oct 21, 1990 · UTC+10 11:49 PM Tue, Jan 1, 1991 · UTC+11
Sydney Australia 5:30 AM Sun, Oct 21, 1990 · UTC+10 11:49 PM Tue, Jan 1, 1991 · UTC+11
Auckland New Zealand 8:30 AM Sun, Oct 21, 1990 · UTC+13 1:49 AM Wed, Jan 2, 1991 · UTC+13

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.

73 days · retreats 16.81° · crosses the year boundary

October 20, 1990 → January 1, 1991 in Gemini

Stations retrograde Oct 20, 1990, 7:30 PM UTC at 14°33′ Gemini
Stations direct Jan 1, 1991, 12:49 PM UTC at 27°45′ Taurus
Shadow opens Aug 27, 1990, 1:58 AM UTC (55 days before)
Shadow closes Mar 2, 1991, 10:30 PM UTC (60 days after)
Full window including shadows 188 days
The October loop up close, shadow to shadow
The October loop up close, shadow to shadow. Mars crosses the 16.81° between 27°45′ Taurus and 14°33′ Gemini three times: forward in the pre-shadow (55 days), back while retrograde (73 days), forward again in the post-shadow (60 days). Pre-retrograde shadow: Aug 27, 1990 – Oct 20, 1990Post-retrograde shadow: Jan 1, 1991 – Mar 2, 1991Retrograde: Oct 20, 1990 – Jan 1, 199120° Taurus25° Taurus0° Gemini5° Gemini10° Gemini15° Gemini20° GeminiStations retrograde Oct 20, 1990, 7:30 PM UTC, 14°33′ GeminiR Oct 20 · 14°33′ GeminiStations direct Jan 1, 1991, 12:49 PM UTC, 27°45′ TaurusD Jan 1 · 27°45′ TaurusAug 20Sep 17Oct 15Nov 12Dec 10Jan 7Feb 4Mar 4Source: JPL orbital elements; stations NASA JPL DE440astrohot.com The October loop up close, shadow to shadow. Mars crosses the 16.81° between 27°45′ Taurus and 14°33′ Gemini three times: forward in the pre-shadow (55 days), back while retrograde (73 days), forward again in the post-shadow (60 days). Pre-retrograde shadow: Aug 27, 1990 – Oct 20, 1990Post-retrograde shadow: Jan 1, 1991 – Mar 2, 1991Retrograde: Oct 20, 1990 – Jan 1, 199120° Taurus20° GeminiStations retrograde Oct 20, 1990, 7:30 PM UTC, 14°33′ GeminiR Oct 20 · 14°33′ GeminiStations direct Jan 1, 1991, 12:49 PM UTC, 27°45′ TaurusD Jan 1 · 27°45′ TaurusAug 20Oct 15Dec 10Feb 4Source: JPL orbital elements; stations NASA JPL DE440astrohot.com

Mars crosses the 16.81° between 27°45′ Taurus and 14°33′ Gemini three times: forward in the pre-shadow (55 days), back while retrograde (73 days), forward again in the post-shadow (60 days).

Mars retrograde in Gemini

Mars retrograde in Gemini scatters energy and sharpens arguments. Projects stall because attention is split, debates go in circles and travel plans are disrupted. It suits finishing half-done tasks and choosing which battles actually matter.

It begins in Libra season and ends in Capricorn season.

Also retrograde at the same time

  • Jupiter in Leo — Nov 30 to Jan 1, 1991 (32 days of overlap)
  • Mercury in Capricorn — Dec 14 to Jan 1, 1991 (18 days of overlap)

For the sign itself, see Gemini and its daily horoscope.

Computed from the actual motion

The nearest Mars retrogrades either side of 1990

Previous

1988 Ended October 28, 1988 after 63 days, moving back 11.59° through the zodiac.

Next

1992 Begins November 28, 1992 and runs 78 days.

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 1990

Mars through the zodiac in 1990

Every sign Mars occupies during 1990, 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 Sagittarius From Jan 1 – Jan 29
Mars in Capricorn Jan 29 – Mar 11
Mars in Aquarius Mar 11 – Apr 20
Mars in Pisces Apr 20 – May 31
Mars in Aries May 31 – Jul 12
Mars in Taurus Jul 12 – Aug 31
Mars in Gemini Aug 31 – Dec 14
Mars in Taurus Dec 14 – Dec 31 and beyond

8 segments in 1990. Dates from NASA JPL’s DE440 ephemeris.

1990 at a glance

Every other retrograde in 1990

Jupiter in Cancer Oct 29, 1989 – Feb 24, 1990 · 119 days
Venus in Aquarius Dec 29, 1989 – Feb 8, 1990 · 41 days
Mercury in Capricorn Dec 30, 1989 – Jan 20, 1990 · 20 days
Pluto in Scorpio Feb 19, 1990 – Jul 26, 1990 · 157 days
Uranus in Capricorn Apr 13, 1990 – Sep 14, 1990 · 154 days
Neptune in Capricorn Apr 16, 1990 – Sep 23, 1990 · 160 days
Mercury in Taurus Apr 23, 1990 – May 17, 1990 · 24 days
Saturn in Capricorn May 4, 1990 – Sep 23, 1990 · 141 days
Mercury in Virgo Aug 25, 1990 – Sep 17, 1990 · 23 days
Jupiter in Leo Nov 30, 1990 – Mar 30, 1991 · 120 days
Mercury in Capricorn Dec 14, 1990 – Jan 3, 1991 · 20 days
← 1989 Mars retrograde in 1989. All Mars retrogrades Averages, shadow periods and the sign distribution over fifty years. 1991 → Mars retrograde in 1991.

Cite this page

AstroHot. “Mars Retrograde 1990 Dates: From Oct 20.” Accessed October 31, 2026. https://astrohot.com/retrograde/mars/1990/

For Wikipedia {{cite web |title=Mars Retrograde 1990 Dates: From Oct 20 |url=https://astrohot.com/retrograde/mars/1990/ |website=AstroHot |access-date=2026-10-31}}