The sky on May 31, 1926 — as it really was
That day the Sun stood in Taurus, while the horoscope says "Gemini". The gap is 22.8° of precession.
Bodies on the ecliptic (noon UTC)
- ☉︎ Sun — 69.3° · sign Gemini · constellation Taurus
- ☽︎ Moon — 301.6° · sign Aquarius · constellation Capricornus
- ☿︎ Mercury — 64.1° · sign Gemini · constellation Taurus
- ♀︎ Venus — 27.4° · sign Aries · constellation Pisces
- ♂︎ Mars — 349.9° · sign Pisces · constellation Aquarius
- ♃︎ Jupiter — 326.8° · sign Aquarius · constellation Aquarius
- ♄︎ Saturn — 231.5° · sign Scorpio · constellation Libra
- ☽︎ Moon 81% 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 gibbous, 81% lit; the Moon was 368,935 km away.
astronomy-engine - How far Earth has travelled since [EXACT]
100.3 orbits of the Sun — 94,307 million km, that is 122,668 return trips to the Moon; 36,653 rotations of Earth; with the Sun — 728.4 billion km around the Galactic centre, 28.1 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 174 million km away; today it is 244 million km (farther 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 December 24, 2027; Jupiter — in 2033; a full moon exactly on this date — May 30, 2045
sidereal periods: Mars 686.98 d, Jupiter 11.862 yr - How far the sky has drifted since [EXACT]
The vernal point has shifted 5,040″ since that day; the real constellations now sit 22.8° away from the astrologers’ “signs”.
precession 50.29″/yr
Other dates
Computed from the date only; nothing about you is stored.