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Astrology · Reference · Ephemeris

Daily ephemeris — May 2100

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
111Ta14Aq25Ta27Ta℞ 5Cn15Li℞21Li℞22Ar14Vi℞ 3Ta
212Ta27Aq27Ta27Ta℞ 6Cn15Li℞21Li℞22Ar14Vi℞ 4Ta
313Ta 9Pi29Ta27Ta℞ 7Cn15Li℞21Li℞22Ar14Vi℞ 4Ta
414Ta21Pi 0Ge26Ta℞ 7Cn15Li℞21Li℞22Ar14Vi℞ 4Ta
515Ta 3Ar 2Ge26Ta℞ 8Cn15Li℞21Li℞22Ar14Vi℞ 4Ta
616Ta14Ar 4Ge25Ta℞ 8Cn15Li℞21Li℞23Ar14Vi℞ 4Ta
717Ta26Ar 5Ge24Ta℞ 9Cn14Li℞21Li℞23Ar14Vi℞ 4Ta
818Ta 8Ta 7Ge24Ta℞10Cn14Li℞21Li℞23Ar14Vi℞ 4Ta
918Ta20Ta 8Ge23Ta℞10Cn14Li℞21Li℞23Ar14Vi℞ 4Ta
1019Ta 2Ge10Ge23Ta℞11Cn14Li℞21Li℞23Ar14Vi℞ 4Ta
1120Ta14Ge11Ge22Ta℞12Cn14Li℞21Li℞23Ar14Vi℞ 4Ta
1221Ta26Ge12Ge21Ta℞12Cn14Li℞21Li℞23Ar14Vi℞ 4Ta
1322Ta 9Cn14Ge21Ta℞13Cn14Li℞21Li℞23Ar14Vi℞ 4Ta
1423Ta22Cn15Ge20Ta℞13Cn14Li℞21Li℞23Ar14Vi℞ 4Ta
1524Ta 4Le16Ge20Ta℞14Cn14Li℞21Li℞23Ar14Vi℞ 4Ta
1625Ta18Le17Ge19Ta℞15Cn14Li℞20Li℞23Ar14Vi℞ 4Ta
1726Ta 1Vi18Ge18Ta℞15Cn14Li℞20Li℞23Ar14Vi℞ 4Ta
1827Ta15Vi19Ge18Ta℞16Cn14Li℞20Li℞23Ar14Vi℞ 4Ta
1928Ta29Vi20Ge17Ta℞16Cn13Li℞20Li℞23Ar14Vi℞ 4Ta
2029Ta14Li20Ge17Ta℞17Cn13Li℞20Li℞23Ar14Vi℞ 4Ta
21 0Ge29Li21Ge16Ta℞18Cn13Li℞20Li℞23Ar14Vi℞ 4Ta
22 1Ge14Sc22Ge16Ta℞18Cn13Li℞20Li℞23Ar14Vi℞ 4Ta
23 2Ge29Sc22Ge15Ta℞19Cn13Li℞20Li℞23Ar14Vi℞ 4Ta
24 3Ge14Sg22Ge15Ta℞19Cn13Li℞20Li℞23Ar14Vi℞ 4Ta
25 4Ge28Sg23Ge15Ta℞20Cn13Li℞20Li℞23Ar14Vi℞ 4Ta
26 5Ge13Cp23Ge14Ta℞21Cn13Li℞20Li℞24Ar14Vi 4Ta
27 6Ge26Cp23Ge14Ta℞21Cn13Li℞20Li℞24Ar14Vi 4Ta
28 7Ge10Aq23Ge14Ta℞22Cn13Li℞20Li℞24Ar14Vi 4Ta
29 8Ge23Aq23Ge℞14Ta℞22Cn13Li℞20Li℞24Ar14Vi 4Ta
30 9Ge 5Pi23Ge℞13Ta℞23Cn13Li℞20Li℞24Ar14Vi 4Ta
3110Ge17Pi23Ge℞13Ta℞24Cn13Li℞20Li℞24Ar14Vi 4Ta

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.