The sky on September 10, 1939 — as it really was
That day the Sun stood in Leo, while the horoscope says "Virgo". The gap is 23.0° of precession.
Bodies on the ecliptic (noon UTC)
- ☉︎ Sun — 166.9° · sign Virgo · constellation Leo
- ☽︎ Moon — 124.8° · sign Leo · constellation Cancer
- ☿︎ Mercury — 156.0° · sign Virgo · constellation Leo
- ♀︎ Venus — 168.1° · sign Virgo · constellation Leo
- ♂︎ Mars — 296.0° · sign Capricorn · constellation Sagittarius
- ♃︎ Jupiter — 6.0° · sign Aries · constellation Cetus
- ♄︎ Saturn — 30.6° · sign Taurus · constellation Pisces
- ☽︎ Moon 13% 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, 13% lit; the Moon was 362,496 km away.
astronomy-engine - How far Earth has travelled since [EXACT]
87.1 orbits of the Sun — 81,829 million km, that is 106,437 return trips to the Moon; 31,803 rotations of Earth; with the Sun — 632 billion km around the Galactic centre, 24.4 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 76 million km away; today it is 243 million km (farther by 3.2×).
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 February 3, 2028; Jupiter — in 2034; a full moon exactly on this date — September 10, 2041
sidereal periods: Mars 686.98 d, Jupiter 11.862 yr - How far the sky has drifted since [EXACT]
The vernal point has shifted 4,356″ 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.