Retrograde Calendar
About Retrograde Calendar
Station times, degrees, durations, and shadow periods for every retrograde of the year — computed astronomy, not folklore.
No planet ever backs up; the loop is a trick of parallax as Earth laps a slower world or is lapped by a faster one. The tradition reads it accordingly. A changes a planet's gear, not its meaning; matters under its sponsorship come round again for review, revision, repair. The days that carry real weight are the , when a planet stands still to turn. Mark those dates, not the whole stretch.
☿︎Mercury retrograde 1800· four times this year
The classic season of crossed wires; three or four short spells a year. Re-read, re-confirm, back up the files; let the signature wait for the turning day if it can.
Retrograde 17 Dec 1799 – 06 Jan (3 weeks), 12°28' Capricorn back to 26°12' Sagittarius; shadow from 29 Nov 1799 to 25 Jan. Stations at 04:57 and 04:12 UT.
Retrograde 07 Apr – 01 May (3 weeks), 2°18' Taurus back to 21°47' Aries; shadow from 25 Mar to 18 May. Stations at 19:41 and 13:26 UT.
Retrograde 10 Aug – 03 Sep (3 weeks), 9°02' Virgo back to 25°46' Leo; shadow from 22 Jul to 17 Sep. Stations at 20:33 and 06:19 UT.
Retrograde 01 Dec – 20 Dec (3 weeks), 26°38' Sagittarius back to 10°20' Sagittarius; shadow from 12 Nov to 08 Jan 1801. Stations at 01:37 and 20:07 UT.
♀︎Venus retrograde 1800· not retrograde this year
Venus holds a straight course through 1800; no spell, no shadow, no station to mark.
♂︎Mars retrograde 1800· once this year
Retrograde 03 Oct – 12 Dec (10 weeks), 25°01' Taurus back to 9°26' Taurus; shadow from 12 Aug to 07 Feb 1801. Stations at 05:10 and 10:09 UT.
The slow planets
Jupiter outward, a planet spends four to five months of every year retrograde; that is ordinary weather, not an event. The slower the planet, the longer the spell and the less it asks of any single day. Mark the stations; the rest is season.
♃︎Jupiter retrograde 1800· twice this year
Retrograde 19 Oct 1799 – 15 Feb (17 weeks), 1°25' Cancer back to 21°21' Gemini; shadow from 25 Jul 1799 to 12 May. Stations at 15:35 and 04:45 UT.
Retrograde 21 Nov – 21 Mar 1801 (17 weeks), 4°27' Leo back to 24°23' Cancer; shadow from 26 Aug to 17 Jun 1801. Stations at 02:42 and 04:07 UT.
♄︎Saturn retrograde 1800· twice this year
Retrograde 21 Nov 1799 – 04 Apr (19 weeks), 10°15' Leo back to 3°19' Leo; shadow from 18 Aug 1799 to 09 Jul. Stations at 08:57 and 12:55 UT.
Retrograde 05 Dec – 18 Apr 1801 (19 weeks), 24°01' Leo back to 17°07' Leo; shadow from 01 Sep to 24 Jul 1801. Stations at 04:26 and 21:46 UT.
♅︎Uranus retrograde 1800· once this year
Retrograde 01 Jan – 31 May (21 weeks), 27°07' Virgo back to 22°58' Virgo; shadow from 19 Sep 1799 to 14 Sep. Stations at 09:46 and 06:06 UT.
♆︎Neptune retrograde 1800· once this year
Retrograde 17 Feb – 26 Jul (23 weeks), 17°14' Scorpio back to 14°27' Scorpio; shadow from 29 Oct 1799 to 16 Nov. Stations at 08:51 and 23:16 UT.
♇︎Pluto retrograde 1800· once this year
Retrograde 04 Jun – 16 Nov (23 weeks), 4°30' Pisces back to 2°16' Pisces; shadow from 06 Feb to 13 Mar 1801. Stations at 15:21 and 00:28 UT.
All times Universal Time (UT), from the same engine as the sky. Spells that open or close beyond the calendar year are listed with their own year on the date; the window belongs to both years and appears on both pages. On doctrine: a retrograde conditions a planet's expression; it does not doom it. The working tradition keeps no list of forbidden days, a spell that repeats a is one process rather than three misfortunes, and the shadow is context, not an extension of the sentence. The stations are the moments that matter; what a planet touches while standing still, it means.