The sky on May 13, 1938 — as it really was
That day the Sun stood in Aries, while the horoscope says "Taurus". The gap is 23.0° of precession.
Bodies on the ecliptic (noon UTC)
- ☉︎ Sun — 52.1° · sign Taurus · constellation Aries
- ☽︎ Moon — 222.3° · sign Scorpio · constellation Libra
- ☿︎ Mercury — 27.7° · sign Aries · constellation Pisces
- ♀︎ Venus — 76.5° · sign Gemini · constellation Taurus
- ♂︎ Mars — 73.5° · sign Gemini · constellation Taurus
- ♃︎ Jupiter — 329.9° · sign Aquarius · constellation Aquarius
- ♄︎ Saturn — 13.3° · sign Aries · constellation Pisces
- ☽︎ Moon 99% 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]
full moon, 99% lit; the Moon was 396,830 km away.
astronomy-engine - How far Earth has travelled since [EXACT]
88.4 orbits of the Sun — 83,072 million km, that is 108,055 return trips to the Moon; 32,286 rotations of Earth; with the Sun — 641.6 billion km around the Galactic centre, 24.8 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 368 million km away; today it is 245 million km (closer by 1.5×).
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 October 6, 2026; Jupiter — in 2033; a full moon exactly on this date — May 12, 2063
sidereal periods: Mars 686.98 d, Jupiter 11.862 yr - How far the sky has drifted since [EXACT]
The vernal point has shifted 4,428″ 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.