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Astrology · Reference · Ephemeris

Daily ephemeris — May 2010

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
111Ta18Sg 6Ta℞ 7Ge12Le23Pi28Vi℞28Pi28Aq 5Cp℞
211Ta 1Cp 5Ta℞ 8Ge13Le24Pi28Vi℞29Pi28Aq 5Cp℞
312Ta13Cp 5Ta℞10Ge13Le24Pi28Vi℞29Pi28Aq 5Cp℞
413Ta25Cp 4Ta℞11Ge13Le24Pi28Vi℞29Pi28Aq 5Cp℞
514Ta 7Aq 4Ta℞12Ge14Le24Pi28Vi℞29Pi28Aq 5Cp℞
615Ta19Aq 3Ta℞13Ge14Le24Pi28Vi℞29Pi28Aq 5Cp℞
716Ta 1Pi 3Ta℞14Ge15Le25Pi28Vi℞29Pi28Aq 5Cp℞
817Ta13Pi 3Ta℞16Ge15Le25Pi28Vi℞29Pi28Aq 5Cp℞
918Ta25Pi 2Ta℞17Ge16Le25Pi28Vi℞29Pi28Aq 5Cp℞
1019Ta 7Ar 2Ta℞18Ge16Le25Pi28Vi℞29Pi28Aq 5Cp℞
1120Ta19Ar 2Ta℞19Ge16Le25Pi28Vi℞29Pi28Aq 5Cp℞
1221Ta 2Ta 2Ta20Ge17Le26Pi28Vi℞29Pi28Aq 5Cp℞
1322Ta15Ta 2Ta22Ge17Le26Pi28Vi℞29Pi28Aq 5Cp℞
1423Ta29Ta 2Ta23Ge18Le26Pi28Vi℞29Pi28Aq 5Cp℞
1524Ta12Ge 3Ta24Ge18Le26Pi28Vi℞29Pi28Aq 5Cp℞
1625Ta26Ge 3Ta25Ge19Le26Pi27Vi℞29Pi28Aq 5Cp℞
1726Ta10Cn 3Ta26Ge19Le26Pi27Vi℞29Pi28Aq 5Cp℞
1827Ta24Cn 4Ta28Ge20Le27Pi27Vi℞29Pi28Aq 4Cp℞
1928Ta 8Le 4Ta29Ge20Le27Pi27Vi℞29Pi28Aq 4Cp℞
2029Ta22Le 5Ta 0Cn21Le27Pi27Vi℞29Pi28Aq 4Cp℞
21 0Ge 7Vi 6Ta 1Cn21Le27Pi27Vi℞29Pi28Aq 4Cp℞
22 1Ge21Vi 6Ta 2Cn22Le27Pi27Vi℞29Pi28Aq 4Cp℞
23 2Ge 5Li 7Ta 4Cn22Le27Pi27Vi℞29Pi28Aq 4Cp℞
24 3Ge19Li 8Ta 5Cn23Le28Pi27Vi℞29Pi28Aq 4Cp℞
25 4Ge 3Sc 9Ta 6Cn23Le28Pi27Vi℞29Pi28Aq 4Cp℞
26 5Ge16Sc10Ta 7Cn24Le28Pi27Vi℞29Pi28Aq 4Cp℞
27 6Ge 0Sg11Ta 8Cn24Le28Pi27Vi℞29Pi28Aq 4Cp℞
28 7Ge13Sg12Ta10Cn25Le28Pi27Vi℞ 0Ar28Aq 4Cp℞
29 8Ge26Sg13Ta11Cn25Le28Pi27Vi℞ 0Ar28Aq 4Cp℞
30 8Ge 9Cp14Ta12Cn26Le29Pi27Vi℞ 0Ar28Aq 4Cp℞
31 9Ge21Cp15Ta13Cn26Le29Pi27Vi 0Ar28Aq 4Cp℞

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.