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Astrology · Reference · Ephemeris

Daily ephemeris — May 1978

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
110Ta 1Pi16Ar 5Ge 8Le 3Cn23Le14Sc℞17Sg℞14Li℞
211Ta15Pi16Ar 6Ge 8Le 3Cn23Le14Sc℞17Sg℞14Li℞
312Ta28Pi17Ar 7Ge 9Le 3Cn23Le14Sc℞17Sg℞14Li℞
413Ta11Ar18Ar 8Ge 9Le 3Cn23Le14Sc℞17Sg℞14Li℞
514Ta24Ar18Ar 9Ge 9Le 3Cn23Le14Sc℞17Sg℞14Li℞
615Ta 7Ta19Ar11Ge10Le 4Cn23Le14Sc℞17Sg℞14Li℞
716Ta20Ta20Ar12Ge10Le 4Cn23Le14Sc℞17Sg℞14Li℞
817Ta 2Ge21Ar13Ge11Le 4Cn23Le14Sc℞17Sg℞14Li℞
918Ta14Ge22Ar14Ge11Le 4Cn23Le14Sc℞17Sg℞14Li℞
1019Ta26Ge23Ar16Ge12Le 4Cn23Le14Sc℞17Sg℞14Li℞
1120Ta 8Cn24Ar17Ge12Le 4Cn23Le14Sc℞17Sg℞14Li℞
1221Ta20Cn25Ar18Ge13Le 5Cn23Le14Sc℞17Sg℞14Li℞
1322Ta 2Le26Ar19Ge13Le 5Cn23Le14Sc℞17Sg℞14Li℞
1423Ta14Le27Ar20Ge14Le 5Cn23Le13Sc℞17Sg℞14Li℞
1524Ta26Le28Ar22Ge14Le 5Cn24Le13Sc℞17Sg℞14Li℞
1625Ta 8Vi 0Ta23Ge15Le 5Cn24Le13Sc℞17Sg℞14Li℞
1726Ta21Vi 1Ta24Ge15Le 6Cn24Le13Sc℞17Sg℞14Li℞
1827Ta 4Li 2Ta25Ge16Le 6Cn24Le13Sc℞17Sg℞14Li℞
1928Ta17Li 4Ta26Ge16Le 6Cn24Le13Sc℞17Sg℞14Li℞
2029Ta 1Sc 5Ta28Ge17Le 6Cn24Le13Sc℞17Sg℞14Li℞
21 0Ge15Sc 7Ta29Ge17Le 6Cn24Le13Sc℞17Sg℞14Li℞
22 1Ge 0Sg 8Ta 0Cn18Le 7Cn24Le13Sc℞17Sg℞14Li℞
23 1Ge15Sg10Ta 1Cn18Le 7Cn24Le13Sc℞17Sg℞14Li℞
24 2Ge 0Cp11Ta 2Cn19Le 7Cn24Le13Sc℞17Sg℞14Li℞
25 3Ge15Cp13Ta 4Cn19Le 7Cn24Le13Sc℞17Sg℞14Li℞
26 4Ge29Cp15Ta 5Cn20Le 7Cn24Le13Sc℞17Sg℞14Li℞
27 5Ge14Aq16Ta 6Cn20Le 8Cn24Le13Sc℞17Sg℞14Li℞
28 6Ge28Aq18Ta 7Cn21Le 8Cn24Le13Sc℞17Sg℞14Li℞
29 7Ge12Pi20Ta 8Cn21Le 8Cn24Le13Sc℞17Sg℞14Li℞
30 8Ge25Pi22Ta10Cn22Le 8Cn24Le13Sc℞17Sg℞14Li℞
31 9Ge 8Ar23Ta11Cn22Le 9Cn24Le13Sc℞17Sg℞14Li℞

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.