The sky on May 18, 1927 — as it really was
That day the Sun stood in Taurus — sign and constellation agree here.
Bodies on the ecliptic (noon UTC)
- ☉︎ Sun — 56.5° · sign Taurus · constellation Taurus
- ☽︎ Moon — 256.1° · sign Sagittarius · constellation Ophiuchus
- ☿︎ Mercury — 54.5° · sign Taurus · constellation Taurus
- ♀︎ Venus — 97.0° · sign Cancer · constellation Gemini
- ♂︎ Mars — 108.6° · sign Cancer · constellation Gemini
- ♃︎ Jupiter — 357.0° · sign Pisces · constellation Pisces
- ♄︎ Saturn — 245.0° · sign Sagittarius · constellation Scorpius
- ☽︎ Moon 97% 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, 97% lit; the Moon was 392,952 km away.
astronomy-engine - How far Earth has travelled since [EXACT]
99.4 orbits of the Sun — 93,402 million km, that is 121,490 return trips to the Moon; 36,301 rotations of Earth; with the Sun — 721.4 billion km around the Galactic centre, 27.8 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 311 million km away; today it is 244 million km (closer by 1.3×).
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 January 23, 2027; Jupiter — in 2034.
sidereal periods: Mars 686.98 d, Jupiter 11.862 yr - How far the sky has drifted since [EXACT]
The vernal point has shifted 5,004″ 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.