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Astrology · Reference · Ephemeris

Daily ephemeris — September 2021

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 9Vi 3Cn 3Li19Li21Vi25Aq℞ 8Aq℞14Ta℞22Pi℞24Cp℞
210Vi15Cn 4Li20Li21Vi25Aq℞ 8Aq℞14Ta℞22Pi℞24Cp℞
311Vi27Cn 5Li21Li22Vi25Aq℞ 7Aq℞14Ta℞22Pi℞24Cp℞
412Vi10Le 7Li22Li23Vi25Aq℞ 7Aq℞14Ta℞22Pi℞24Cp℞
513Vi23Le 8Li23Li23Vi25Aq℞ 7Aq℞14Ta℞22Pi℞24Cp℞
614Vi 7Vi 9Li24Li24Vi25Aq℞ 7Aq℞14Ta℞22Pi℞24Cp℞
715Vi21Vi10Li26Li25Vi24Aq℞ 7Aq℞14Ta℞21Pi℞24Cp℞
816Vi 5Li12Li27Li25Vi24Aq℞ 7Aq℞14Ta℞21Pi℞24Cp℞
917Vi19Li13Li28Li26Vi24Aq℞ 7Aq℞14Ta℞21Pi℞24Cp℞
1018Vi 3Sc14Li29Li27Vi24Aq℞ 7Aq℞14Ta℞21Pi℞24Cp℞
1118Vi17Sc15Li 0Sc27Vi24Aq℞ 7Aq℞14Ta℞21Pi℞24Cp℞
1219Vi 2Sg16Li 1Sc28Vi24Aq℞ 7Aq℞14Ta℞21Pi℞24Cp℞
1320Vi16Sg17Li 3Sc29Vi24Aq℞ 7Aq℞14Ta℞21Pi℞24Cp℞
1421Vi 0Cp18Li 4Sc29Vi24Aq℞ 7Aq℞14Ta℞21Pi℞24Cp℞
1522Vi14Cp19Li 5Sc 0Li24Aq℞ 7Aq℞14Ta℞21Pi℞24Cp℞
1623Vi28Cp20Li 6Sc 0Li23Aq℞ 7Aq℞14Ta℞21Pi℞24Cp℞
1724Vi11Aq21Li 7Sc 1Li23Aq℞ 7Aq℞14Ta℞21Pi℞24Cp℞
1825Vi25Aq21Li 8Sc 2Li23Aq℞ 7Aq℞14Ta℞21Pi℞24Cp℞
1926Vi 8Pi22Li 9Sc 2Li23Aq℞ 7Aq℞14Ta℞21Pi℞24Cp℞
2027Vi21Pi23Li11Sc 3Li23Aq℞ 7Aq℞14Ta℞21Pi℞24Cp℞
2128Vi 4Ar23Li12Sc 4Li23Aq℞ 7Aq℞14Ta℞21Pi℞24Cp℞
2229Vi17Ar24Li13Sc 4Li23Aq℞ 7Aq℞14Ta℞21Pi℞24Cp℞
23 0Li29Ar24Li14Sc 5Li23Aq℞ 7Aq℞14Ta℞21Pi℞24Cp℞
24 1Li11Ta25Li15Sc 6Li23Aq℞ 7Aq℞14Ta℞21Pi℞24Cp℞
25 2Li23Ta25Li16Sc 6Li23Aq℞ 7Aq℞14Ta℞21Pi℞24Cp℞
26 3Li 5Ge25Li17Sc 7Li23Aq℞ 7Aq℞14Ta℞21Pi℞24Cp℞
27 4Li17Ge25Li℞18Sc 8Li23Aq℞ 7Aq℞14Ta℞21Pi℞24Cp℞
28 5Li29Ge25Li℞20Sc 8Li22Aq℞ 7Aq℞14Ta℞21Pi℞24Cp℞
29 6Li11Cn25Li℞21Sc 9Li22Aq℞ 6Aq℞14Ta℞21Pi℞24Cp℞
30 7Li23Cn24Li℞22Sc10Li22Aq℞ 6Aq℞14Ta℞21Pi℞24Cp℞

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.