UmbrielAstrology

Retrograde dates for 1900

These are the exact dates every planet from Mercury to Pluto turns retrograde and turns direct in 1900, in Universal Time. Mercury is retrograde from 15 March 1900 to 7 April 1900, and from 18 July 1900 to 11 August 1900, and from 9 November 1900 to 29 November 1900.

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Mercury retrograde in 1900

Mercury is retrograde in 3 periods touching 1900.

Venus retrograde in 1900

Venus is retrograde in 1 period touching 1900.

Mars retrograde in 1900

Mars does not turn retrograde or direct in 1900.

Jupiter retrograde in 1900

Jupiter is retrograde in 1 period touching 1900.

Saturn retrograde in 1900

Saturn is retrograde in 1 period touching 1900.

Uranus retrograde in 1900

Uranus is retrograde in 1 period touching 1900.

Neptune retrograde in 1900

Neptune is retrograde in 2 periods touching 1900.

Pluto retrograde in 1900

Pluto is retrograde in 2 periods touching 1900.

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 1900 · Ephemeris 1900 · Retrograde calendar · Sky events ahead