The sky on December 7, 1966 — as it really was
That day the Sun stood in Ophiuchus, while the horoscope says "Sagittarius". The gap is 23.4° of precession.
Bodies on the ecliptic (noon UTC)
- ☉︎ Sun — 254.9° · sign Sagittarius · constellation Ophiuchus
- ☽︎ Moon — 194.4° · sign Libra · constellation Virgo
- ☿︎ Mercury — 234.8° · sign Scorpio · constellation Libra
- ♀︎ Venus — 261.9° · sign Sagittarius · constellation Ophiuchus
- ♂︎ Mars — 181.8° · sign Libra · constellation Virgo
- ♃︎ Jupiter — 124.1° · sign Leo · constellation Cancer
- ♄︎ Saturn — 353.0° · sign Pisces · constellation Aquarius
- ☽︎ Moon 26% illuminated
astronomy-engine ephemerides (VSOP87/ELP), IAU 1930 constellation boundaries. Positions accurate to a fraction of a degree.
The day’s dossier, from real data
Checkable facts with a tag and a source; the classical reading is in the chart.
- The Moon that day [EXACT]
waning crescent, 26% lit; the Moon was 368,853 km away.
astronomy-engine - How far Earth has travelled since [EXACT]
59.8 orbits of the Sun — 56,226 million km, that is 73,134 return trips to the Moon; 21,852 rotations of Earth; with the Sun — 434.2 billion km around the Galactic centre, 16.8 light-days.
29.78 km/s along the orbit; 230 km/s around the Galactic centre - Mars then and now [EXACT]
On that day Mars was 248 million km away; today it is 244 million km (closer by 1×).
astronomy-engine; checked against JPL Horizons for 2026-09-14 - Solar cycle [ESTIMATE]
That day fell in solar cycle 20, right at the minimum (19% through the cycle).
SILSO smoothed minima - When the sky repeats [EXACT]
Mars returns to that day’s point of its orbit on February 13, 2027; Jupiter — in 2037.
sidereal periods: Mars 686.98 d, Jupiter 11.862 yr - How far the sky has drifted since [EXACT]
The vernal point has shifted 2,988″ since that day; the real constellations now sit 23.4° away from the astrologers’ “signs”.
precession 50.29″/yr
Other dates
Computed from the date only; nothing about you is stored.