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Neptune retrograde 1900

Neptune retrograde 1900: 1 period, 90 days inside the year — 24.7% of 1900. Neptune turned retrograde at 5:48 PM UTC on October 2 at 29°15′ Gemini and turned direct at 6:24 AM UTC on March 8, 1901 at 26°26′ Gemini.

Turns retrograde
Oct 2 5:48 PM UTC
Retrograde in 1900
90 days 24.7% of the year
Sign
Gemini retreats 2.82°
Neptune Retrograde 1900 Dates: From Oct 2

Neptune’s path through 1900, day by day

Apparent position of Neptune against the zodiac, 1900
Apparent position of Neptune against the zodiac, 1900. Neptune starts 1900 at 23°49′ Gemini and ends it at 26°08′ Gemini — 2.3° of net progress: 5.1° forward, 2.7° given back. The loop retraces 2.82° in 157 days, from 29°15′ Gemini on Oct 2 back to 26°26′ Gemini on Mar 8 1901. Fastest day: Jun 15, 0.037° forward; fastest backward: Dec 18, 0.028°. Counting the shadows, 365 days of 1900 sit inside a retrograde window. Pre-retrograde shadow: Jun 11, 1900 – Oct 2, 1900Retrograde: Oct 2, 1900 – Mar 8, 190122° Gemini24° Gemini26° Gemini28° GeminiStations retrograde Oct 2, 1900, 5:48 PM UTC, 29°15′ GeminiR Oct 2JanFebMarAprMayJunJulAugSepOctNovDecSource: JPL orbital elements; stations NASA JPL DE440astrohot.com Apparent position of Neptune against the zodiac, 1900. Neptune starts 1900 at 23°49′ Gemini and ends it at 26°08′ Gemini — 2.3° of net progress: 5.1° forward, 2.7° given back. The loop retraces 2.82° in 157 days, from 29°15′ Gemini on Oct 2 back to 26°26′ Gemini on Mar 8 1901. Fastest day: Jun 15, 0.037° forward; fastest backward: Dec 18, 0.028°. Counting the shadows, 365 days of 1900 sit inside a retrograde window. Pre-retrograde shadow: Jun 11, 1900 – Oct 2, 1900Retrograde: Oct 2, 1900 – Mar 8, 190122° Gemini24° Gemini26° Gemini28° GeminiStations retrograde Oct 2, 1900, 5:48 PM UTC, 29°15′ GeminiR Oct 2JanFebMarAprMayJunJulAugSepOctNovDecSource: JPL orbital elements; stations NASA JPL DE440astrohot.com
Retrograde Shadow R — stations retrograde · D — stations direct

Neptune starts 1900 at 23°49′ Gemini and ends it at 26°08′ Gemini — 2.3° of net progress: 5.1° forward, 2.7° given back. The loop retraces 2.82° in 157 days, from 29°15′ Gemini on Oct 2 back to 26°26′ Gemini on Mar 8 1901. Fastest day: Jun 15, 0.037° forward; fastest backward: Dec 18, 0.028°. Counting the shadows, 365 days of 1900 sit inside a retrograde window.

Exact times

Neptune retrograde 1900: exact times in your city

Neptune turned retrograde at 5:48 PM UTC on October 2, 1900 at 29°15′ Gemini — 1:05 PM in Santiago, 12:48 PM in New York, 5:48 PM in London and 2:48 AM on October 3 in Tokyo.

City Turns retrograde · Oct 2, 1900 Turns direct · Mar 8, 1901
UTC Tue, Oct 2, 1900 · 29°15′ Gemini Fri, Mar 8, 1901 · 26°26′ Gemini
Honolulu United States 7:18 AM Tue, Oct 2, 1900 · UTC−10:30 7:54 PM Thu, Mar 7, 1901 · UTC−10:30
Anchorage United States 7:48 AM Tue, Oct 2, 1900 · UTC−10 8:24 PM Thu, Mar 7, 1901 · UTC−10
Los Angeles United States 9:48 AM Tue, Oct 2, 1900 · UTC−8 10:24 PM Thu, Mar 7, 1901 · UTC−8
Phoenix United States 10:48 AM Tue, Oct 2, 1900 · UTC−7 11:24 PM Thu, Mar 7, 1901 · UTC−7
Denver United States 10:48 AM Tue, Oct 2, 1900 · UTC−7 11:24 PM Thu, Mar 7, 1901 · UTC−7
Chicago United States 11:48 AM Tue, Oct 2, 1900 · UTC−6 12:24 AM Fri, Mar 8, 1901 · UTC−6
Mexico City Mexico 11:11 AM Tue, Oct 2, 1900 · UTC−6:36 11:47 PM Thu, Mar 7, 1901 · UTC−6:36
New York United States 12:48 PM Tue, Oct 2, 1900 · UTC−5 1:24 AM Fri, Mar 8, 1901 · UTC−5
Toronto Canada 12:48 PM Tue, Oct 2, 1900 · UTC−5 1:24 AM Fri, Mar 8, 1901 · UTC−5
Bogotá Colombia 12:51 PM Tue, Oct 2, 1900 · UTC−4:56 1:27 AM Fri, Mar 8, 1901 · UTC−4:56
Lima Peru 12:39 PM Tue, Oct 2, 1900 · UTC−5:08 1:15 AM Fri, Mar 8, 1901 · UTC−5:08
Caracas Venezuela 1:20 PM Tue, Oct 2, 1900 · UTC−4:27 1:56 AM Fri, Mar 8, 1901 · UTC−4:27
Santiago Chile 1:05 PM Tue, Oct 2, 1900 · UTC−4:42 1:41 AM Fri, Mar 8, 1901 · UTC−4:42
Buenos Aires Argentina 1:31 PM Tue, Oct 2, 1900 · UTC−4:16 2:07 AM Fri, Mar 8, 1901 · UTC−4:16
São Paulo Brazil 2:41 PM Tue, Oct 2, 1900 · UTC−3:06 3:17 AM Fri, Mar 8, 1901 · UTC−3:06
Reykjavík Iceland 4:20 PM Tue, Oct 2, 1900 · UTC−1:28 4:56 AM Fri, Mar 8, 1901 · UTC−1:28
London United Kingdom 5:48 PM Tue, Oct 2, 1900 · UTC 6:24 AM Fri, Mar 8, 1901 · UTC
Lagos Nigeria 6:01 PM Tue, Oct 2, 1900 · UTC+0:13 6:37 AM Fri, Mar 8, 1901 · UTC+0:13
Paris France 5:57 PM Tue, Oct 2, 1900 · UTC+0:09 6:33 AM Fri, Mar 8, 1901 · UTC+0:09
Berlin Germany 6:48 PM Tue, Oct 2, 1900 · UTC+1 7:24 AM Fri, Mar 8, 1901 · UTC+1
Johannesburg South Africa 7:18 PM Tue, Oct 2, 1900 · UTC+1:30 7:54 AM Fri, Mar 8, 1901 · UTC+1:30
Cairo Egypt 7:48 PM Tue, Oct 2, 1900 · UTC+2 8:24 AM Fri, Mar 8, 1901 · UTC+2
Athens Greece 7:22 PM Tue, Oct 2, 1900 · UTC+1:34 7:58 AM Fri, Mar 8, 1901 · UTC+1:34
Istanbul Turkey 7:44 PM Tue, Oct 2, 1900 · UTC+1:56 8:20 AM Fri, Mar 8, 1901 · UTC+1:56
Moscow Russia 8:18 PM Tue, Oct 2, 1900 · UTC+2:30 8:54 AM Fri, Mar 8, 1901 · UTC+2:30
Nairobi Kenya 8:15 PM Tue, Oct 2, 1900 · UTC+2:27 8:51 AM Fri, Mar 8, 1901 · UTC+2:27
Tehran Iran 9:13 PM Tue, Oct 2, 1900 · UTC+3:25 9:49 AM Fri, Mar 8, 1901 · UTC+3:25
Dubai United Arab Emirates 9:29 PM Tue, Oct 2, 1900 · UTC+3:41 10:05 AM Fri, Mar 8, 1901 · UTC+3:41
Karachi Pakistan 10:16 PM Tue, Oct 2, 1900 · UTC+4:28 10:52 AM Fri, Mar 8, 1901 · UTC+4:28
New Delhi India 11:09 PM Tue, Oct 2, 1900 · UTC+5:21 11:45 AM Fri, Mar 8, 1901 · UTC+5:21
Kathmandu Nepal 11:29 PM Tue, Oct 2, 1900 · UTC+5:41 12:05 PM Fri, Mar 8, 1901 · UTC+5:41
Dhaka Bangladesh 11:41 PM Tue, Oct 2, 1900 · UTC+5:53 12:17 PM Fri, Mar 8, 1901 · UTC+5:53
Bangkok Thailand 12:30 AM Wed, Oct 3, 1900 · UTC+6:42 1:06 PM Fri, Mar 8, 1901 · UTC+6:42
Jakarta Indonesia 12:55 AM Wed, Oct 3, 1900 · UTC+7:07 1:31 PM Fri, Mar 8, 1901 · UTC+7:07
Singapore 12:43 AM Wed, Oct 3, 1900 · UTC+6:55 1:19 PM Fri, Mar 8, 1901 · UTC+6:55
Beijing China 1:53 AM Wed, Oct 3, 1900 · UTC+8:05 2:24 PM Fri, Mar 8, 1901 · UTC+8
Manila Philippines 1:48 AM Wed, Oct 3, 1900 · UTC+8 2:24 PM Fri, Mar 8, 1901 · UTC+8
Perth Australia 1:48 AM Wed, Oct 3, 1900 · UTC+8 2:24 PM Fri, Mar 8, 1901 · UTC+8
Seoul South Korea 2:15 AM Wed, Oct 3, 1900 · UTC+8:27 2:51 PM Fri, Mar 8, 1901 · UTC+8:27
Tokyo Japan 2:48 AM Wed, Oct 3, 1900 · UTC+9 3:24 PM Fri, Mar 8, 1901 · UTC+9
Adelaide Australia 3:18 AM Wed, Oct 3, 1900 · UTC+9:30 3:54 PM Fri, Mar 8, 1901 · UTC+9:30
Brisbane Australia 3:48 AM Wed, Oct 3, 1900 · UTC+10 4:24 PM Fri, Mar 8, 1901 · UTC+10
Sydney Australia 3:48 AM Wed, Oct 3, 1900 · UTC+10 4:24 PM Fri, Mar 8, 1901 · UTC+10
Auckland New Zealand 5:18 AM Wed, Oct 3, 1900 · UTC+11:30 5:54 PM Fri, Mar 8, 1901 · UTC+11:30

Stations from the NASA JPL DE440 ephemeris. Swiss Ephemeris agrees on every Neptune station 1900–2050: median under a minute, largest 1.8 minutes. Near a station Neptune barely moves, so almanacs differ by minutes. Local times: IANA time zones, to the minute.

157 days · retreats 2.82° · crosses the year boundary

October 2, 1900 → March 8, 1901 in Gemini

Stations retrograde Oct 2, 1900, 5:48 PM UTC at 29°15′ Gemini
Stations direct Mar 8, 1901, 6:24 AM UTC at 26°26′ Gemini
Shadow opens Jun 11, 1900, 1:42 AM UTC (114 days before)
Shadow closes Jun 29, 1901, 9:19 AM UTC (113 days after)
Full window including shadows 383 days

It begins in Libra season and ends in Pisces season.

Also retrograde at the same time

  • Pluto in Gemini — Oct 2 to Feb 28, 1901 (149 days of overlap)
  • Mercury in Sagittarius — Nov 9 to Nov 29, 1900 (20 days of overlap)
  • Mars in Virgo — Jan 13 to Mar 8, 1901 (54 days of overlap)
  • Mercury in Pisces — Feb 26 to Mar 8, 1901 (10 days of overlap)

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

Computed from the actual motion

The nearest Neptune retrogrades either side of 1900

Previous

1899 Ended March 3, 1899 after 157 days, moving back 2.82° through the zodiac.

Next

1901 Begins October 5, 1901 and runs 156 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 1900

Neptune through the zodiac in 1900

Every sign Neptune occupies during 1900, 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.

Neptune in Gemini From Jan 1 – Dec 31 and beyond

The whole year is spent in one sign — a sign of how slowly Neptune moves.

1900 at a glance

Every other retrograde in 1900

Mercury in Aries Mar 15, 1900 – Apr 7, 1900 · 23 days
Uranus in Sagittarius Mar 17, 1900 – Aug 17, 1900 · 153 days
Jupiter in Sagittarius Mar 27, 1900 – Jul 29, 1900 · 123 days
Saturn in Capricorn Apr 14, 1900 – Sep 2, 1900 · 141 days
Venus in Cancer Jun 16, 1900 – Jul 30, 1900 · 43 days
Mercury in Leo Jul 18, 1900 – Aug 11, 1900 · 24 days
Pluto in Gemini Sep 17, 1900 – Feb 28, 1901 · 164 days
Mercury in Sagittarius Nov 9, 1900 – Nov 29, 1900 · 20 days
All Neptune retrogrades Averages, shadow periods and the sign distribution over fifty years. 1901 → Neptune retrograde in 1901.

Cite this page

AstroHot. “Neptune Retrograde 1900 Dates: From Oct 2.” Accessed November 1, 2026. https://astrohot.com/retrograde/neptune/1900/

For Wikipedia {{cite web |title=Neptune Retrograde 1900 Dates: From Oct 2 |url=https://astrohot.com/retrograde/neptune/1900/ |website=AstroHot |access-date=2026-11-01}}