The sky on December 3, 1946 — as it really was
That day the Sun stood in Ophiuchus, while the horoscope says "Sagittarius". The gap is 23.1° of precession.
Bodies on the ecliptic (noon UTC)
- ☉︎ Sun — 250.7° · sign Sagittarius · constellation Ophiuchus
- ☽︎ Moon — 360.0° · sign Pisces · constellation Pisces
- ☿︎ Mercury — 231.6° · sign Scorpio · constellation Libra
- ♀︎ Venus — 227.6° · sign Scorpio · constellation Libra
- ♂︎ Mars — 259.5° · sign Sagittarius · constellation Ophiuchus
- ♃︎ Jupiter — 224.8° · sign Scorpio · constellation Libra
- ♄︎ Saturn — 128.7° · sign Leo · constellation Cancer
- ☽︎ Moon 67% 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]
first quarter, 67% lit; the Moon was 380,272 km away.
astronomy-engine - How far Earth has travelled since [EXACT]
79.8 orbits of the Sun — 75,033 million km, that is 97,597 return trips to the Moon; 29,162 rotations of Earth; with the Sun — 579.5 billion km around the Galactic centre, 22.4 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 363 million km away; today it is 244 million km (closer by 1.5×).
astronomy-engine; checked against JPL Horizons for 2026-09-14 - When the sky repeats [EXACT]
Mars returns to that day’s point of its orbit on October 19, 2027; Jupiter — in 2029.
sidereal periods: Mars 686.98 d, Jupiter 11.862 yr - How far the sky has drifted since [EXACT]
The vernal point has shifted 3,996″ since that day; the real constellations now sit 23.1° away from the astrologers’ “signs”.
precession 50.29″/yr
Other dates
Computed from the date only; nothing about you is stored.