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Astrology · Reference · Ephemeris

Daily ephemeris — September 1981

Planet positions for every day of the month, sampled at noon UT. Computed live from VSOP87D + ELP2000 ephemerides. Navigate any month forward or back; data is consistent with the free Birth Chart and Sky Map tools.

Day☉ Sun☽ Moon☿ Mer♀ Ven♂ Mar♃ Jup♄ Sat♅ Ura♆ Nep♇ Plu
1 8Vi13Li27Vi16Li29Cn11Li 8Li26Sc22Sg℞22Li
2 9Vi25Li29Vi17Li 0Le11Li 8Li26Sc22Sg℞22Li
310Vi 7Sc 0Li18Li 0Le12Li 8Li26Sc22Sg22Li
411Vi19Sc 2Li20Li 1Le12Li 9Li26Sc22Sg22Li
512Vi 1Sg 3Li21Li 2Le12Li 9Li26Sc22Sg22Li
613Vi13Sg 5Li22Li 2Le12Li 9Li26Sc22Sg22Li
714Vi25Sg 6Li23Li 3Le12Li 9Li26Sc22Sg22Li
815Vi 7Cp 8Li24Li 4Le13Li 9Li26Sc22Sg22Li
916Vi19Cp 9Li25Li 4Le13Li 9Li26Sc22Sg22Li
1017Vi 2Aq10Li27Li 5Le13Li 9Li26Sc22Sg22Li
1118Vi15Aq12Li28Li 5Le13Li 9Li26Sc22Sg22Li
1219Vi28Aq13Li29Li 6Le13Li 9Li26Sc22Sg22Li
1320Vi12Pi14Li 0Sc 7Le14Li10Li26Sc22Sg22Li
1421Vi26Pi16Li 1Sc 7Le14Li10Li26Sc22Sg23Li
1522Vi10Ar17Li 2Sc 8Le14Li10Li26Sc22Sg23Li
1623Vi25Ar18Li 4Sc 9Le14Li10Li26Sc22Sg23Li
1724Vi10Ta19Li 5Sc 9Le15Li10Li26Sc22Sg23Li
1825Vi24Ta21Li 6Sc10Le15Li10Li26Sc22Sg23Li
1926Vi 8Ge22Li 7Sc10Le15Li10Li26Sc22Sg23Li
2027Vi23Ge23Li 8Sc11Le15Li10Li26Sc22Sg23Li
2128Vi 7Cn24Li 9Sc12Le15Li11Li27Sc22Sg23Li
2229Vi20Cn25Li11Sc12Le16Li11Li27Sc22Sg23Li
23 0Li 4Le26Li12Sc13Le16Li11Li27Sc22Sg23Li
24 1Li17Le27Li13Sc14Le16Li11Li27Sc22Sg23Li
25 2Li 0Vi28Li14Sc14Le16Li11Li27Sc22Sg23Li
26 3Li13Vi29Li15Sc15Le16Li11Li27Sc22Sg23Li
27 4Li26Vi 0Sc16Sc15Le17Li11Li27Sc22Sg23Li
28 5Li 9Li 0Sc18Sc16Le17Li11Li27Sc22Sg23Li
29 6Li21Li 1Sc19Sc17Le17Li12Li27Sc22Sg23Li
30 7Li 3Sc 2Sc20Sc17Le17Li12Li27Sc22Sg23Li

Reading the table

  • Format: degree + sign abbreviation. 15Le = 15° Leo.
  • ℞ = retrograde — the planet appears to move backwards through the zodiac that day.
  • highlighted = station day, the moment a planet stops and reverses direction (or vice versa). The most-watched single days in any month.

Common questions

About the ephemeris

What is an ephemeris?

A table of planetary positions over time. The classical paper ephemeris (Raphael's, Rosicrucian, Swiss Ephemeris) lists each planet's longitude on each day of the year — the working tool astrologers use to plan elections, time transits, and check past or future configurations. This page reproduces that data live from arcsecond-grade ephemerides.

Why noon UT?

The classical convention. The slow planets (Jupiter through Pluto) barely move in 12 hours, so noon-sampling captures their position for the whole day with negligible error. The Moon moves ~6.5° in 12 hours (about a quarter of a sign), so the Moon column is most accurate at noon UT specifically — for an exact Moon position at any moment in your local time, use the Sky Map tool.

How do I read each cell?

Each cell shows the planet's degree-in-sign and the sign abbreviation. "15Le" = 15° Leo. The ℞ marker means retrograde — the planet appears to move backwards through the zodiac on that day. Sign-changes (ingresses) appear as a transition between two adjacent cells; the exact ingress moment is in our Sky Now or Lunar Calendar pages.

Why are some cells highlighted?

We highlight the day each planet first appears retrograde or first turns direct in the displayed month — the stations. These are the most-watched days in any month: a planet's station is when it's stopped relative to the stars, and astrologers read the station as a focused activation of the planet's themes for the week or two surrounding it.

How accurate is this?

Arcsecond. We use VSOP87D for the planets and a truncated ELP2000 lunar model with deltaT correction. Same engine that computes the free Birth Chart, Sky Map, and Transit Forecast. Time-zone is UT (universal time); convert to your local time-zone if you need a same-day local read.

Can I use this to plan elections?

Yes — the daily ephemeris is the working table for Hellenistic and modern Western election work. Pair with the Muhurta tool (Vedic auspicious-time scoring), the Choghadiya page (Vedic time windows), and the Lunar Calendar (Moon phases + sign-ingresses) for a full election workflow.

Computation

Each cell is a live engine call cached for 24 hours: VSOP87D for Mercury–Neptune, an in-house DOPRI8 8(7) integrator for Pluto, and a truncated ELP2000 lunar model with deltaT correction for the Moon. Sub-arcsecond accurate. Sampled at 12:00 UT. Retrograde flags come from the engine’s direction-of-motion check, not a calendar approximation; station days are detected from adjacent-day flag flips.