1900 to 2050

Neptune through the signs

Neptune spends about fourteen years in each sign, which is long enough that a table answers "when was it in Scorpio" better than any calculator. Every date below was found by searching the ephemeris rather than copied from a printed table.

Dates Neptune entered each sign between 1900 and 2050
EnteredSignUntil
19 Jul 1901Cancer25 Dec 1901
25 Dec 1901Gemini21 May 1902
21 May 1902Cancer23 Sept 1914
23 Sept 1914Leo14 Dec 1914
14 Dec 1914Cancer19 Jul 1915
19 Jul 1915Leo19 Mar 1916
19 Mar 1916Cancer2 May 1916
2 May 1916Leo21 Sept 1928
21 Sept 1928Virgo19 Feb 1929
19 Feb 1929Leo24 Jul 1929
24 Jul 1929Virgo3 Oct 1942
3 Oct 1942Libra17 Apr 1943
17 Apr 1943Virgo2 Aug 1943
2 Aug 1943Libra24 Dec 1955
24 Dec 1955Scorpio12 Mar 1956
12 Mar 1956Libra19 Oct 1956
19 Oct 1956Scorpio15 Jun 1957
15 Jun 1957Libra6 Aug 1957
6 Aug 1957Scorpio4 Jan 1970
4 Jan 1970Sagittarius3 May 1970
3 May 1970Scorpio6 Nov 1970
6 Nov 1970Sagittarius19 Jan 1984
19 Jan 1984Capricorn23 Jun 1984
23 Jun 1984Sagittarius21 Nov 1984
21 Nov 1984Capricorn29 Jan 1998
29 Jan 1998Aquarius23 Aug 1998
23 Aug 1998Capricorn28 Nov 1998
28 Nov 1998Aquarius4 Apr 2011
4 Apr 2011Pisces5 Aug 2011
5 Aug 2011Aquarius3 Feb 2012
3 Feb 2012Pisces30 Mar 2025
30 Mar 2025Aries22 Oct 2025
22 Oct 2025Pisces26 Jan 2026
26 Jan 2026Ariesnow22 May 2038
22 May 2038Taurus21 Oct 2038
21 Oct 2038Aries23 Mar 2039
23 Mar 2039Taurusafter this table ends

Reading a table like this

A retrograde planet can cross a sign boundary, turn around, cross back and cross again, so a sign appears more than once in a row with a short gap between. That is real rather than an error, and it is why some entries here last a few weeks and others years.

All times are UT. A change that happens near midnight will fall on the previous or next day in your own timezone, which matters if you were born within a day of one.

Find your own Neptune

Reading it off a table works. Casting the chart tells you the house and the aspects as well, which is where the placement actually becomes about you.

Calculate my birth chartWhat Neptune meansThe faster placements