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Astrology · Reference · Ephemeris

Daily ephemeris — May 1977

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
110Ta12Li 9Ta℞ 8Ar 2Ar 5Ge10Le 9Sc℞15Sg℞12Li℞
211Ta27Li 9Ta℞ 8Ar 3Ar 6Ge10Le 9Sc℞15Sg℞12Li℞
312Ta12Sc 8Ta℞ 8Ar 4Ar 6Ge10Le 9Sc℞15Sg℞12Li℞
413Ta27Sc 7Ta℞ 9Ar 5Ar 6Ge10Le 9Sc℞15Sg℞11Li℞
514Ta12Sg 7Ta℞ 9Ar 6Ar 6Ge10Le 9Sc℞15Sg℞11Li℞
615Ta27Sg 6Ta℞ 9Ar 6Ar 6Ge10Le 9Sc℞15Sg℞11Li℞
716Ta12Cp 6Ta℞10Ar 7Ar 7Ge10Le 9Sc℞15Sg℞11Li℞
817Ta26Cp 5Ta℞10Ar 8Ar 7Ge10Le 9Sc℞15Sg℞11Li℞
918Ta10Aq 5Ta℞10Ar 9Ar 7Ge10Le 9Sc℞15Sg℞11Li℞
1019Ta23Aq 5Ta℞11Ar 9Ar 7Ge10Le 9Sc℞15Sg℞11Li℞
1120Ta 6Pi 4Ta℞11Ar10Ar 8Ge10Le 9Sc℞15Sg℞11Li℞
1221Ta19Pi 4Ta℞12Ar11Ar 8Ge10Le 9Sc℞15Sg℞11Li℞
1322Ta 1Ar 4Ta℞12Ar12Ar 8Ge10Le 9Sc℞15Sg℞11Li℞
1423Ta13Ar 4Ta13Ar12Ar 8Ge10Le 9Sc℞15Sg℞11Li℞
1524Ta25Ar 4Ta13Ar13Ar 9Ge10Le 9Sc℞15Sg℞11Li℞
1625Ta 7Ta 4Ta14Ar14Ar 9Ge11Le 9Sc℞15Sg℞11Li℞
1726Ta19Ta 5Ta14Ar15Ar 9Ge11Le 9Sc℞15Sg℞11Li℞
1827Ta 1Ge 5Ta15Ar15Ar 9Ge11Le 9Sc℞15Sg℞11Li℞
1928Ta13Ge 5Ta16Ar16Ar 9Ge11Le 8Sc℞15Sg℞11Li℞
2029Ta25Ge 6Ta16Ar17Ar10Ge11Le 8Sc℞15Sg℞11Li℞
21 0Ge 7Cn 6Ta17Ar18Ar10Ge11Le 8Sc℞15Sg℞11Li℞
22 1Ge19Cn 7Ta18Ar19Ar10Ge11Le 8Sc℞15Sg℞11Li℞
23 2Ge 1Le 8Ta18Ar19Ar10Ge11Le 8Sc℞15Sg℞11Li℞
24 3Ge13Le 8Ta19Ar20Ar11Ge11Le 8Sc℞15Sg℞11Li℞
25 4Ge26Le 9Ta20Ar21Ar11Ge11Le 8Sc℞15Sg℞11Li℞
26 5Ge 9Vi10Ta21Ar22Ar11Ge11Le 8Sc℞15Sg℞11Li℞
27 6Ge22Vi11Ta21Ar22Ar11Ge11Le 8Sc℞15Sg℞11Li℞
28 7Ge 6Li12Ta22Ar23Ar12Ge11Le 8Sc℞14Sg℞11Li℞
29 7Ge20Li13Ta23Ar24Ar12Ge11Le 8Sc℞14Sg℞11Li℞
30 8Ge 5Sc14Ta24Ar25Ar12Ge12Le 8Sc℞14Sg℞11Li℞
31 9Ge20Sc15Ta25Ar25Ar12Ge12Le 8Sc℞14Sg℞11Li℞

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.