The sky on April 20, 1937 — as it really was
That day the Sun stood in Aries — sign and constellation agree here.
Bodies on the ecliptic (noon UTC)
- ☉︎ Sun — 30.0° · sign Aries · constellation Aries
- ☽︎ Moon — 152.0° · sign Virgo · constellation Sextans
- ☿︎ Mercury — 49.8° · sign Taurus · constellation Aries
- ♀︎ Venus — 26.1° · sign Aries · constellation Pisces
- ♂︎ Mars — 245.3° · sign Sagittarius · constellation Scorpius
- ♃︎ Jupiter — 296.3° · sign Capricorn · constellation Sagittarius
- ♄︎ Saturn — 359.5° · sign Pisces · constellation Pisces
- ☽︎ Moon 76% 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]
waxing gibbous, 76% lit; the Moon was 391,231 km away.
astronomy-engine - How far Earth has travelled since [EXACT]
89.5 orbits of the Sun — 84,075 million km, that is 109,359 return trips to the Moon; 32,676 rotations of Earth; with the Sun — 649.3 billion km around the Galactic centre, 25.1 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 95 million km away; today it is 243 million km (farther by 2.6×).
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 August 1, 2027; Jupiter — in 2032.
sidereal periods: Mars 686.98 d, Jupiter 11.862 yr - How far the sky has drifted since [EXACT]
The vernal point has shifted 4,500″ 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.