The sky on April 13, 1942 — as it really was
That day the Sun stood in Pisces, while the horoscope says "Aries". The gap is 23.1° of precession.
Bodies on the ecliptic (noon UTC)
- ☉︎ Sun — 22.9° · sign Aries · constellation Pisces
- ☽︎ Moon — 358.5° · sign Pisces · constellation Pisces
- ☿︎ Mercury — 15.5° · sign Aries · constellation Pisces
- ♀︎ Venus — 336.6° · sign Pisces · constellation Aquarius
- ♂︎ Mars — 82.2° · sign Gemini · constellation Taurus
- ♃︎ Jupiter — 78.0° · sign Gemini · constellation Taurus
- ♄︎ Saturn — 56.9° · sign Taurus · constellation Taurus
- ☽︎ Moon 5% 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, 5% lit; the Moon was 390,332 km away.
astronomy-engine - How far Earth has travelled since [EXACT]
84.5 orbits of the Sun — 79,392 million km, that is 103,268 return trips to the Moon; 30,856 rotations of Earth; with the Sun — 613.2 billion km around the Galactic centre, 23.7 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 283 million km away; today it is 245 million km (closer by 1.2×).
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 December 2, 2026; Jupiter — in 2037; a full moon exactly on this date — April 13, 2063
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.