When Was Neptune Last in Libra?
Updated October 5, 2026
As of October 2026, the last time was 1942–57: Neptune first entered Libra on 3 October 1942 and, because retrograde motion carried it back and forth across the sign's boundary, entered it four times in all before leaving for good on 6 August 1957. Next: Neptune first enters Libra on 21 November 2105; retrograde motion carries it back and forth across the sign's boundary, so it enters four times in all and leaves for good on 4 October 2120.
Each bar runs from first entry to final exit. Stretches marked with a neighbouring sign are times it crossed back over the boundary before returning.
Every Neptune-in-Libra pass, 1600–2600
Dates are in UTC and the Gregorian calendar; in a time zone far from Greenwich an ingress can fall on the neighbouring calendar day. Dates before 14 September 1752 are Gregorian too, though Britain and its colonies still used the Julian calendar, 10 days behind until 11 March 1700 and 11 days behind after, and began the year on 25 March.
| First entry | Final exit | Time in Libra | Entered |
|---|---|---|---|
| 6 November 1614 | 22 September 1629 | 14 years | 3 times |
| In Libra: 6 Nov 1614 – 2 Mar 1615 · 7 Sept 1615 – 19 Nov 1628 · 21 Apr 1629 – 22 Sept 1629 | |||
| 18 October 1778 | 2 September 1793 | 14 years | 3 times |
| In Libra: 18 Oct 1778 – 25 Mar 1779 · 21 Aug 1779 – 2 Nov 1792 · 14 May 1793 – 2 Sept 1793 | |||
| 3 October 1942 | 6 August 1957 | 14 years | 4 times |
| In Libra: 3 Oct 1942 – 17 Apr 1943 · 2 Aug 1943 – 24 Dec 1955 · 11 Mar 1956 – 19 Oct 1956 · 15 Jun 1957 – 6 Aug 1957 | |||
| 21 November 2105 | 4 October 2120 | 14 years | 4 times |
| In Libra: 21 Nov 2105 – 12 Feb 2106 · 18 Sept 2106 – 19 May 2107 · 4 Jul 2107 – 3 Dec 2119 · 4 Apr 2120 – 4 Oct 2120 | |||
| 1 November 2269 | 18 September 2284 | 14 years | 3 times |
| In Libra: 1 Nov 2269 – 7 Mar 2270 · 3 Sept 2270 – 16 Nov 2283 · 25 Apr 2284 – 18 Sept 2284 | |||
| 16 October 2433 | 1 September 2448 | 14 years | 3 times |
| In Libra: 16 Oct 2433 – 27 Mar 2434 · 18 Aug 2434 – 2 Nov 2447 · 15 May 2448 – 1 Sept 2448 | |||
Search Neptune in Libra in the app
Born with Neptune in Libra
- Born 3 October 1942 – 6 August 1957, except 17 April 1943 – 2 August 1943 (in Virgo), 24 December 1955 – 11 March 1956 (in Scorpio) and 19 October 1956 – 15 June 1957 (in Scorpio)
On the days Neptune changes sign, the birth time decides: dates here are UTC. Enter your birth data to see your own chart.
Neptune retrograde in Libra, the 1942–57 pass
Retrograde periods with at least one station in Libra: the date Neptune stood still and turned retrograde, and the date it turned direct again.
| Stations retrograde | Stations direct |
|---|---|
| 3 January 1943 2°03′ Libra | 10 June 1943 29°16′ Virgo |
| 6 January 1944 4°14′ Libra | 12 June 1944 1°27′ Libra |
| 7 January 1945 6°25′ Libra | 14 June 1945 3°39′ Libra |
| 10 January 1946 8°37′ Libra | 17 June 1946 5°50′ Libra |
| 12 January 1947 10°48′ Libra | 19 June 1947 8°01′ Libra |
| 14 January 1948 12°59′ Libra | 21 June 1948 10°12′ Libra |
| 16 January 1949 15°10′ Libra | 23 June 1949 12°23′ Libra |
| 18 January 1950 17°21′ Libra | 26 June 1950 14°34′ Libra |
| 21 January 1951 19°31′ Libra | 28 June 1951 16°45′ Libra |
| 23 January 1952 21°42′ Libra | 30 June 1952 18°55′ Libra |
| 25 January 1953 23°53′ Libra | 2 July 1953 21°06′ Libra |
| 27 January 1954 26°03′ Libra | 5 July 1954 23°16′ Libra |
| 29 January 1955 28°14′ Libra | 7 July 1955 25°27′ Libra |
| 1 February 1956 0°25′ Scorpio | 9 July 1956 27°38′ Libra |
| 2 February 1957 2°35′ Scorpio | 11 July 1957 29°49′ Libra |
How Neptune moves through the zodiac
Across 1600–2600, Neptune spent about 13 years to 14 years in a sign on each pass, not counting retrograde dips out of it, and it returned to the same sign about every 164 years. 100% of passes included at least one retrograde dip back over a sign boundary.
Neptune in other signs
Aries · Taurus · Gemini · Cancer · Leo · Virgo · Libra · Scorpio · Sagittarius · Capricorn · Aquarius · Pisces
Other planets in Libra
Venus · Mars · Jupiter · Saturn · Chiron · Uranus · Neptune · Pluto
All planets in all signs · How to read these dates
How these dates were found
With Horoskopos's sky search: Neptune's geocentric, apparent, tropical ecliptic longitude, computed with the open-source Astronomy Engine library, with each sign boundary found to the minute. Sample ingresses agree with NASA JPL's Horizons ephemeris to within about three hours. Data generated 2026-10-04; page built 2026-10-05.