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Astrology · Reference · Ephemeris

Daily ephemeris — December 2018

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 9Sg28Vi29Sc℞29Li 9Pi 5Sg 7Cp29Ar℞13Pi19Cp
210Sg12Li29Sc℞29Li10Pi 5Sg 7Cp29Ar℞13Pi19Cp
311Sg25Li28Sc℞ 0Sc11Pi 5Sg 8Cp29Ar℞13Pi19Cp
412Sg 8Sc27Sc℞ 1Sc11Pi 5Sg 8Cp29Ar℞13Pi19Cp
513Sg22Sc27Sc℞ 1Sc12Pi 6Sg 8Cp29Ar℞13Pi19Cp
614Sg 4Sg27Sc℞ 2Sc13Pi 6Sg 8Cp29Ar℞13Pi19Cp
715Sg17Sg27Sc 2Sc13Pi 6Sg 8Cp28Ar℞13Pi19Cp
816Sg29Sg27Sc 3Sc14Pi 6Sg 8Cp28Ar℞13Pi19Cp
917Sg12Cp27Sc 4Sc14Pi 6Sg 8Cp28Ar℞13Pi19Cp
1018Sg24Cp28Sc 4Sc15Pi 7Sg 8Cp28Ar℞13Pi19Cp
1119Sg 6Aq28Sc 5Sc16Pi 7Sg 8Cp28Ar℞13Pi19Cp
1220Sg17Aq29Sc 6Sc16Pi 7Sg 9Cp28Ar℞13Pi19Cp
1321Sg29Aq 0Sg 7Sc17Pi 7Sg 9Cp28Ar℞13Pi20Cp
1422Sg11Pi 1Sg 7Sc18Pi 8Sg 9Cp28Ar℞13Pi20Cp
1523Sg23Pi 2Sg 8Sc18Pi 8Sg 9Cp28Ar℞13Pi20Cp
1624Sg 5Ar 3Sg 9Sc19Pi 8Sg 9Cp28Ar℞13Pi20Cp
1725Sg18Ar 4Sg10Sc20Pi 8Sg 9Cp28Ar℞13Pi20Cp
1826Sg 1Ta 5Sg11Sc20Pi 8Sg 9Cp28Ar℞13Pi20Cp
1927Sg14Ta 6Sg11Sc21Pi 9Sg 9Cp28Ar℞13Pi20Cp
2028Sg28Ta 8Sg12Sc22Pi 9Sg10Cp28Ar℞13Pi20Cp
2129Sg12Ge 9Sg13Sc22Pi 9Sg10Cp28Ar℞13Pi20Cp
22 0Cp27Ge10Sg14Sc23Pi 9Sg10Cp28Ar℞13Pi20Cp
23 1Cp12Cn11Sg15Sc24Pi 9Sg10Cp28Ar℞13Pi20Cp
24 2Cp26Cn13Sg16Sc24Pi10Sg10Cp28Ar℞13Pi20Cp
25 3Cp11Le14Sg17Sc25Pi10Sg10Cp28Ar℞13Pi20Cp
26 4Cp26Le15Sg18Sc26Pi10Sg10Cp28Ar℞13Pi20Cp
27 5Cp10Vi17Sg19Sc26Pi10Sg10Cp28Ar℞14Pi20Cp
28 6Cp25Vi18Sg20Sc27Pi11Sg10Cp28Ar℞14Pi20Cp
29 7Cp 8Li20Sg21Sc28Pi11Sg11Cp28Ar℞14Pi20Cp
30 8Cp22Li21Sg22Sc28Pi11Sg11Cp28Ar℞14Pi20Cp
31 9Cp 5Sc23Sg23Sc29Pi11Sg11Cp28Ar℞14Pi20Cp

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.