The sky on December 9, 1941 — 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 — 257.0° · sign Sagittarius · constellation Ophiuchus
- ☽︎ Moon — 139.8° · sign Leo · constellation Leo
- ☿︎ Mercury — 250.1° · sign Sagittarius · constellation Ophiuchus
- ♀︎ Venus — 303.1° · sign Aquarius · constellation Capricornus
- ♂︎ Mars — 16.1° · sign Aries · constellation Pisces
- ♃︎ Jupiter — 76.3° · sign Gemini · constellation Taurus
- ♄︎ Saturn — 53.4° · sign Taurus · constellation Taurus
- ☽︎ Moon 73% 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 gibbous, 73% lit; the Moon was 391,805 km away.
astronomy-engine - How far Earth has travelled since [EXACT]
84.8 orbits of the Sun — 79,716 million km, that is 103,689 return trips to the Moon; 30,982 rotations of Earth; with the Sun — 615.7 billion km around the Galactic centre, 23.8 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 108 million km away; today it is 243 million km (farther by 2.2×).
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 June 16, 2028; Jupiter — in 2036; a full moon exactly on this date — December 9, 2049
sidereal periods: Mars 686.98 d, Jupiter 11.862 yr - How far the sky has drifted since [EXACT]
The vernal point has shifted 4,248″ 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.