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Astrology · Reference · Ephemeris

Daily ephemeris — May 2015

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
110Ta10Li 0Ge22Ge22Ta13Le 3Sg℞17Ar 9Pi15Cp℞
211Ta22Li 1Ge23Ge23Ta13Le 3Sg℞17Ar 9Pi15Cp℞
312Ta 5Sc 3Ge25Ge23Ta13Le 3Sg℞17Ar 9Pi15Cp℞
413Ta17Sc 4Ge26Ge24Ta13Le 2Sg℞18Ar 9Pi15Cp℞
514Ta 0Sg 5Ge27Ge25Ta13Le 2Sg℞18Ar 9Pi15Cp℞
615Ta13Sg 6Ge28Ge26Ta13Le 2Sg℞18Ar 9Pi15Cp℞
716Ta26Sg 7Ge29Ge26Ta13Le 2Sg℞18Ar 9Pi15Cp℞
817Ta 9Cp 8Ge 0Cn27Ta13Le 2Sg℞18Ar 9Pi15Cp℞
918Ta23Cp 9Ge 1Cn28Ta14Le 2Sg℞18Ar 9Pi15Cp℞
1019Ta 7Aq10Ge 2Cn28Ta14Le 2Sg℞18Ar 9Pi15Cp℞
1120Ta21Aq10Ge 3Cn29Ta14Le 2Sg℞18Ar 9Pi15Cp℞
1221Ta 5Pi11Ge 4Cn 0Ge14Le 2Sg℞18Ar 9Pi15Cp℞
1322Ta19Pi11Ge 6Cn 0Ge14Le 2Sg℞18Ar 9Pi15Cp℞
1423Ta 4Ar12Ge 7Cn 1Ge14Le 2Sg℞18Ar 9Pi15Cp℞
1524Ta18Ar12Ge 8Cn 2Ge14Le 2Sg℞18Ar 9Pi15Cp℞
1625Ta 2Ta12Ge 9Cn 3Ge14Le 2Sg℞18Ar 9Pi15Cp℞
1726Ta17Ta13Ge10Cn 3Ge14Le 2Sg℞18Ar 9Pi15Cp℞
1827Ta 1Ge13Ge11Cn 4Ge14Le 1Sg℞18Ar 9Pi15Cp℞
1928Ta15Ge13Ge℞12Cn 5Ge15Le 1Sg℞18Ar 9Pi15Cp℞
2029Ta28Ge13Ge℞13Cn 5Ge15Le 1Sg℞18Ar 9Pi15Cp℞
21 0Ge12Cn12Ge℞14Cn 6Ge15Le 1Sg℞18Ar 9Pi15Cp℞
22 1Ge24Cn12Ge℞15Cn 7Ge15Le 1Sg℞18Ar 9Pi15Cp℞
23 2Ge 7Le12Ge℞16Cn 8Ge15Le 1Sg℞18Ar 9Pi15Cp℞
24 3Ge19Le12Ge℞17Cn 8Ge15Le 1Sg℞18Ar 9Pi15Cp℞
25 3Ge 1Vi11Ge℞18Cn 9Ge15Le 1Sg℞19Ar 9Pi15Cp℞
26 4Ge13Vi11Ge℞19Cn10Ge15Le 1Sg℞19Ar 9Pi15Cp℞
27 5Ge25Vi10Ge℞20Cn10Ge16Le 1Sg℞19Ar 9Pi15Cp℞
28 6Ge 7Li10Ge℞21Cn11Ge16Le 1Sg℞19Ar 9Pi15Cp℞
29 7Ge19Li 9Ge℞22Cn12Ge16Le 1Sg℞19Ar 9Pi15Cp℞
30 8Ge 1Sc 9Ge℞23Cn12Ge16Le 1Sg℞19Ar 9Pi15Cp℞
31 9Ge13Sc 8Ge℞24Cn13Ge16Le 1Sg℞19Ar 9Pi15Cp℞

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.