The sky on December 7, 1940 — as it really was
That day the Sun stood in Ophiuchus, while the horoscope says "Sagittarius". The gap is 23.0° of precession.
Bodies on the ecliptic (noon UTC)
- ☉︎ Sun — 255.3° · sign Sagittarius · constellation Ophiuchus
- ☽︎ Moon — 354.4° · sign Pisces · constellation Pisces
- ☿︎ Mercury — 237.1° · sign Scorpio · constellation Libra
- ♀︎ Venus — 223.5° · sign Scorpio · constellation Libra
- ♂︎ Mars — 221.1° · sign Scorpio · constellation Libra
- ♃︎ Jupiter — 36.6° · sign Taurus · constellation Aries
- ♄︎ Saturn — 38.9° · sign Taurus · constellation Aries
- ☽︎ Moon 58% 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, 58% lit; the Moon was 402,819 km away.
astronomy-engine - How far Earth has travelled since [EXACT]
85.8 orbits of the Sun — 80,659 million km, that is 104,915 return trips to the Moon; 31,348 rotations of Earth; with the Sun — 623 billion km around the Galactic centre, 24.1 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 349 million km away; today it is 244 million km (closer by 1.4×).
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 15, 2027; Jupiter — in 2035.
sidereal periods: Mars 686.98 d, Jupiter 11.862 yr - How far the sky has drifted since [EXACT]
The vernal point has shifted 4,320″ since that day; the real constellations now sit 23° away from the astrologers’ “signs”.
precession 50.29″/yr
Other dates
Computed from the date only; nothing about you is stored.