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Astrology · Reference · Ephemeris

Daily ephemeris — December 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
1 9Sg 8Sg11Sg17Sc22Sc11Sc 4Sc22Ar℞19Vi 3Ta℞
210Sg23Sg12Sg18Sc23Sc11Sc 4Sc22Ar℞19Vi 3Ta℞
311Sg 8Cp14Sg20Sc24Sc11Sc 4Sc22Ar℞19Vi 3Ta℞
412Sg23Cp15Sg21Sc24Sc11Sc 4Sc22Ar℞19Vi 3Ta℞
513Sg 7Aq17Sg22Sc25Sc12Sc 4Sc21Ar℞19Vi 3Ta℞
614Sg20Aq18Sg23Sc26Sc12Sc 4Sc21Ar℞19Vi 3Ta℞
715Sg 3Pi20Sg25Sc26Sc12Sc 4Sc21Ar℞19Vi 3Ta℞
816Sg16Pi22Sg26Sc27Sc12Sc 4Sc21Ar℞19Vi 3Ta℞
917Sg28Pi23Sg27Sc28Sc12Sc 4Sc21Ar℞19Vi 3Ta℞
1018Sg10Ar25Sg28Sc28Sc13Sc 5Sc21Ar℞19Vi 3Ta℞
1119Sg22Ar26Sg 0Sg29Sc13Sc 5Sc21Ar℞19Vi 3Ta℞
1220Sg 4Ta28Sg 1Sg 0Sg13Sc 5Sc21Ar℞19Vi 3Ta℞
1321Sg16Ta29Sg 2Sg 0Sg13Sc 5Sc21Ar℞19Vi 3Ta℞
1422Sg28Ta 1Cp 3Sg 1Sg13Sc 5Sc21Ar℞19Vi 3Ta℞
1523Sg10Ge 3Cp 5Sg 2Sg14Sc 5Sc21Ar℞19Vi 2Ta℞
1624Sg22Ge 4Cp 6Sg 3Sg14Sc 5Sc21Ar℞19Vi 2Ta℞
1725Sg 4Cn 6Cp 7Sg 3Sg14Sc 5Sc21Ar℞19Vi 2Ta℞
1826Sg16Cn 7Cp 8Sg 4Sg14Sc 5Sc21Ar℞19Vi 2Ta℞
1927Sg29Cn 9Cp10Sg 5Sg14Sc 5Sc21Ar℞19Vi 2Ta℞
2028Sg11Le10Cp11Sg 5Sg14Sc 6Sc21Ar℞19Vi 2Ta℞
2129Sg24Le12Cp12Sg 6Sg15Sc 6Sc21Ar℞19Vi 2Ta℞
22 0Cp 7Vi14Cp13Sg 7Sg15Sc 6Sc21Ar℞19Vi℞ 2Ta℞
23 1Cp20Vi15Cp15Sg 7Sg15Sc 6Sc21Ar℞19Vi℞ 2Ta℞
24 2Cp 4Li17Cp16Sg 8Sg15Sc 6Sc21Ar℞19Vi℞ 2Ta℞
25 3Cp18Li18Cp17Sg 9Sg15Sc 6Sc21Ar℞19Vi℞ 1Ta℞
26 4Cp 2Sc20Cp18Sg10Sg16Sc 6Sc21Ar℞19Vi℞ 1Ta℞
27 5Cp17Sc21Cp20Sg10Sg16Sc 6Sc21Ar℞19Vi℞ 1Ta℞
28 6Cp 2Sg23Cp21Sg11Sg16Sc 6Sc21Ar℞19Vi℞ 1Ta℞
29 7Cp17Sg24Cp22Sg12Sg16Sc 6Sc21Ar℞19Vi℞ 1Ta℞
30 8Cp 1Cp26Cp23Sg12Sg16Sc 6Sc21Ar℞19Vi℞ 1Ta℞
31 9Cp16Cp27Cp25Sg13Sg16Sc 6Sc21Ar19Vi℞ 1Ta℞

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.