The sky on May 27, 1929 — as it really was
That day the Sun stood in Taurus, while the horoscope says "Gemini". The gap is 22.9° of precession.
Bodies on the ecliptic (noon UTC)
- ☉︎ Sun — 65.7° · sign Gemini · constellation Taurus
- ☽︎ Moon — 289.0° · sign Capricorn · constellation Sagittarius
- ☿︎ Mercury — 82.4° · sign Gemini · constellation Taurus
- ♀︎ Venus — 26.0° · sign Aries · constellation Pisces
- ♂︎ Mars — 128.0° · sign Leo · constellation Cancer
- ♃︎ Jupiter — 56.3° · sign Taurus · constellation Taurus
- ♄︎ Saturn — 268.8° · sign Sagittarius · constellation Sagittarius
- ☽︎ Moon 86% 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, 86% lit; the Moon was 405,282 km away.
astronomy-engine - How far Earth has travelled since [EXACT]
97.4 orbits of the Sun — 91,497 million km, that is 119,013 return trips to the Moon; 35,561 rotations of Earth; with the Sun — 706.7 billion km around the Galactic centre, 27.3 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 280 million km away; today it is 244 million km (closer by 1.1×).
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 March 17, 2027; Jupiter — in 2036; a full moon exactly on this date — May 27, 2059
sidereal periods: Mars 686.98 d, Jupiter 11.862 yr - How far the sky has drifted since [EXACT]
The vernal point has shifted 4,896″ since that day; the real constellations now sit 22.9° away from the astrologers’ “signs”.
precession 50.29″/yr
Other dates
Computed from the date only; nothing about you is stored.