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Astrology · Reference · Ephemeris

Daily ephemeris — May 2023

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
110Ta20Vi11Ta℞23Ge19Cn26Ar 5Pi18Ta26Pi 0Aq
211Ta 3Li11Ta℞24Ge19Cn26Ar 5Pi18Ta26Pi 0Aq℞
312Ta15Li10Ta℞25Ge20Cn26Ar 5Pi18Ta26Pi 0Aq℞
413Ta28Li 9Ta℞26Ge20Cn27Ar 5Pi18Ta26Pi 0Aq℞
514Ta11Sc 9Ta℞27Ge21Cn27Ar 5Pi18Ta26Pi 0Aq℞
615Ta25Sc 8Ta℞28Ge22Cn27Ar 5Pi18Ta26Pi 0Aq℞
716Ta 9Sg 7Ta℞29Ge22Cn27Ar 5Pi18Ta26Pi 0Aq℞
817Ta23Sg 7Ta℞ 0Cn23Cn28Ar 5Pi18Ta26Pi 0Aq℞
918Ta 7Cp 7Ta℞ 2Cn23Cn28Ar 5Pi18Ta26Pi 0Aq℞
1019Ta21Cp 6Ta℞ 3Cn24Cn28Ar 6Pi18Ta27Pi 0Aq℞
1120Ta 5Aq 6Ta℞ 4Cn24Cn28Ar 6Pi19Ta27Pi 0Aq℞
1221Ta20Aq 6Ta℞ 5Cn25Cn29Ar 6Pi19Ta27Pi 0Aq℞
1322Ta 4Pi 5Ta℞ 6Cn25Cn29Ar 6Pi19Ta27Pi 0Aq℞
1423Ta18Pi 5Ta℞ 7Cn26Cn29Ar 6Pi19Ta27Pi 0Aq℞
1524Ta 2Ar 5Ta 8Cn27Cn29Ar 6Pi19Ta27Pi 0Aq℞
1625Ta16Ar 5Ta 9Cn27Cn29Ar 6Pi19Ta27Pi 0Aq℞
1726Ta29Ar 6Ta10Cn28Cn 0Ta 6Pi19Ta27Pi 0Aq℞
1827Ta13Ta 6Ta11Cn28Cn 0Ta 6Pi19Ta27Pi 0Aq℞
1928Ta26Ta 6Ta12Cn29Cn 0Ta 6Pi19Ta27Pi 0Aq℞
2029Ta 9Ge 6Ta13Cn29Cn 0Ta 6Pi19Ta27Pi 0Aq℞
21 0Ge21Ge 7Ta14Cn 0Le 1Ta 6Pi19Ta27Pi 0Aq℞
22 1Ge 4Cn 7Ta15Cn 1Le 1Ta 6Pi19Ta27Pi 0Aq℞
23 2Ge16Cn 8Ta16Cn 1Le 1Ta 6Pi19Ta27Pi 0Aq℞
24 3Ge28Cn 9Ta18Cn 2Le 1Ta 6Pi19Ta27Pi 0Aq℞
25 4Ge10Le 9Ta19Cn 2Le 1Ta 6Pi19Ta27Pi 0Aq℞
26 5Ge22Le10Ta20Cn 3Le 2Ta 6Pi19Ta27Pi 0Aq℞
27 5Ge 4Vi11Ta21Cn 3Le 2Ta 6Pi19Ta27Pi 0Aq℞
28 6Ge16Vi12Ta22Cn 4Le 2Ta 6Pi20Ta27Pi 0Aq℞
29 7Ge28Vi13Ta23Cn 5Le 2Ta 6Pi20Ta27Pi 0Aq℞
30 8Ge10Li14Ta24Cn 5Le 3Ta 6Pi20Ta27Pi 0Aq℞
31 9Ge23Li15Ta25Cn 6Le 3Ta 6Pi20Ta27Pi 0Aq℞

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.