Retrograde dates for 1991

These are the exact dates every planet from Mercury to Pluto turns retrograde and turns direct in 1991, in Universal Time. Mercury is retrograde from 14 December 1990 to 3 January 1991, and from 4 April 1991 to 28 April 1991, and from 7 August 1991 to 31 August 1991, and from 28 November 1991 to 18 December 1991.

• Mercury retrograde14 December 1990 to 3 January, 4 April to 28 April, 7 August to 31 August, 28 November to 18 December
• Venus retrograde1 August to 13 September
• Mars retrograde20 October 1990 to 1 January
• Jupiter retrograde30 November 1990 to 30 March, 30 December to 30 April 1992
• Saturn retrograde17 May to 5 October
• Uranus retrograde18 April to 19 September

Mercury retrograde in 1991

Mercury is retrograde in 4 periods touching 1991.

• Before 1991Mercury turned retrograde on 14 December 1990 and is still retrograde on 1 January 1991
• Thursday 3 January 199117:47 UTMercury turns direct at 23°42′ Sagittarius
• Thursday 4 April 199118:13 UTMercury turns retrograde at 29°01′ Aries
• Sunday 28 April 199109:37 UTMercury turns direct at 17°59′ Aries
• Wednesday 7 August 199123:45 UTMercury turns retrograde at 5°54′ Virgo
• Saturday 31 August 199114:29 UTMercury turns direct at 23°02′ Leo
• Thursday 28 November 199116:53 UTMercury turns retrograde at 24°11′ Sagittarius
• Wednesday 18 December 199111:06 UTMercury turns direct at 7°54′ Sagittarius

Venus retrograde in 1991

Venus is retrograde in 1 period touching 1991.

• Thursday 1 August 199111:07 UTVenus turns retrograde at 7°19′ Virgo
• Friday 13 September 199108:51 UTVenus turns direct at 20°59′ Leo

Mars retrograde in 1991

Mars is retrograde in 1 period touching 1991.

• Before 1991Mars turned retrograde on 20 October 1990 and is still retrograde on 1 January 1991
• Tuesday 1 January 199113:18 UTMars turns direct at 27°44′ Taurus

Jupiter retrograde in 1991

Jupiter is retrograde in 2 periods touching 1991.

• Before 1991Jupiter turned retrograde on 30 November 1990 and is still retrograde on 1 January 1991
• Saturday 30 March 199113:17 UTJupiter turns direct at 3°32′ Leo
• Monday 30 December 199121:28 UTJupiter turns retrograde at 14°37′ Virgo
• After 1991Jupiter turns direct on 30 April 1992 and is still retrograde on 31 December 1991

Saturn retrograde in 1991

Saturn is retrograde in 1 period touching 1991.

• Friday 17 May 199103:54 UTSaturn turns retrograde at 6°50′ Aquarius
• Saturday 5 October 199103:50 UTSaturn turns direct at 0°11′ Aquarius

Uranus retrograde in 1991

Uranus is retrograde in 1 period touching 1991.

• Thursday 18 April 199110:09 UTUranus turns retrograde at 13°48′ Capricorn
• Thursday 19 September 199108:25 UTUranus turns direct at 9°50′ Capricorn

Neptune retrograde in 1991

Neptune is retrograde in 1 period touching 1991.

• Thursday 18 April 199123:37 UTNeptune turns retrograde at 16°45′ Capricorn
• Thursday 26 September 199107:11 UTNeptune turns direct at 13°59′ Capricorn

Pluto retrograde in 1991

Pluto is retrograde in 1 period touching 1991.

• Thursday 21 February 199121:45 UTPluto turns retrograde at 20°22′ Scorpio
• Sunday 28 July 199118:23 UTPluto turns direct at 17°34′ Scorpio

What “retrograde” means here

A planet is retrograde when its ecliptic longitude, seen from the Earth, is decreasing: it appears to move backwards against the stars. A station is the moment it appears to stop before changing direction. The Sun and the Moon never turn retrograde. Each date above is a station computed to the minute.

What these dates are worth

Every time on this page is computed by the engine that casts the charts, not copied from a table. All times are Universal Time (UT), so a date can fall a day either side of your own clock: add your time zone's offset to get local time. The Moon is checked against NASA and JPL values and the planets against published station and ingress dates; the table of what Umbriel checks, and how close it comes is public. Umbriel is for reflection and self-understanding, not prediction.

Moon phases 1991 · Ephemeris 1991 · Retrograde calendar · Sky events ahead