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Astrology · Reference · Ephemeris

Daily ephemeris — September 1991

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 8Vi 5Ge23Le23Le℞ 0Li27Le 1Aq℞ 9Cp℞14Cp℞17Sc
2 9Vi19Ge23Le23Le℞ 0Li27Le 1Aq℞ 9Cp℞14Cp℞17Sc
310Vi 3Cn23Le22Le℞ 1Li28Le 0Aq℞ 9Cp℞14Cp℞17Sc
411Vi17Cn24Le22Le℞ 2Li28Le 0Aq℞ 9Cp℞14Cp℞17Sc
512Vi 2Le24Le22Le℞ 2Li28Le 0Aq℞ 9Cp℞14Cp℞17Sc
613Vi16Le25Le21Le℞ 3Li28Le 0Aq℞ 9Cp℞14Cp℞17Sc
714Vi 1Vi26Le21Le℞ 4Li28Le 0Aq℞ 9Cp℞14Cp℞18Sc
815Vi15Vi27Le21Le℞ 4Li29Le 0Aq℞ 9Cp℞14Cp℞18Sc
916Vi 0Li28Le21Le℞ 5Li29Le 0Aq℞ 9Cp℞14Cp℞18Sc
1017Vi13Li29Le21Le℞ 5Li29Le 0Aq℞ 9Cp℞14Cp℞18Sc
1118Vi27Li 1Vi21Le℞ 6Li29Le 0Aq℞ 9Cp℞14Cp℞18Sc
1219Vi10Sc 2Vi21Le℞ 7Li 0Vi 0Aq℞ 9Cp℞14Cp℞18Sc
1320Vi23Sc 3Vi21Le 7Li 0Vi 0Aq℞ 9Cp℞14Cp℞18Sc
1421Vi 5Sg 5Vi21Le 8Li 0Vi 0Aq℞ 9Cp℞14Cp℞18Sc
1522Vi17Sg 7Vi21Le 9Li 0Vi 0Aq℞ 9Cp℞14Cp℞18Sc
1623Vi29Sg 8Vi21Le 9Li 0Vi 0Aq℞ 9Cp℞14Cp℞18Sc
1724Vi11Cp10Vi21Le10Li 1Vi 0Aq℞ 9Cp℞14Cp℞18Sc
1825Vi23Cp12Vi21Le11Li 1Vi 0Aq℞ 9Cp℞13Cp℞18Sc
1926Vi 4Aq14Vi21Le11Li 1Vi 0Aq℞ 9Cp13Cp℞18Sc
2027Vi17Aq15Vi21Le12Li 1Vi 0Aq℞ 9Cp13Cp℞18Sc
2128Vi29Aq17Vi22Le13Li 1Vi 0Aq℞ 9Cp13Cp℞18Sc
2228Vi11Pi19Vi22Le13Li 2Vi 0Aq℞ 9Cp13Cp℞18Sc
2329Vi24Pi21Vi22Le14Li 2Vi 0Aq℞ 9Cp13Cp℞18Sc
24 0Li 7Ar23Vi23Le15Li 2Vi 0Aq℞ 9Cp13Cp℞18Sc
25 1Li21Ar25Vi23Le15Li 2Vi 0Aq℞ 9Cp13Cp℞18Sc
26 2Li 4Ta26Vi24Le16Li 2Vi 0Aq℞ 9Cp13Cp18Sc
27 3Li18Ta28Vi24Le17Li 3Vi 0Aq℞ 9Cp13Cp18Sc
28 4Li 2Ge 0Li25Le17Li 3Vi 0Aq℞ 9Cp13Cp18Sc
29 5Li16Ge 2Li25Le18Li 3Vi 0Aq℞ 9Cp13Cp18Sc
30 6Li 0Cn 4Li26Le19Li 3Vi 0Aq℞ 9Cp13Cp18Sc

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.