The sky on June 21, 1936 — as it really was
That day the Sun stood in Gemini — sign and constellation agree here.
Bodies on the ecliptic (noon UTC)
- ☉︎ Sun — 89.9° · sign Gemini · constellation Gemini
- ☽︎ Moon — 118.8° · sign Cancer · constellation Cancer
- ☿︎ Mercury — 68.4° · sign Gemini · constellation Taurus
- ♀︎ Venus — 87.7° · sign Gemini · constellation Taurus
- ♂︎ Mars — 87.0° · sign Gemini · constellation Taurus
- ♃︎ Jupiter — 258.2° · sign Sagittarius · constellation Ophiuchus
- ♄︎ Saturn — 352.4° · sign Pisces · constellation Aquarius
- ☽︎ Moon 6% 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]
waxing crescent, 6% lit; the Moon was 382,980 km away.
astronomy-engine - How far Earth has travelled since [EXACT]
90.3 orbits of the Sun — 84,849 million km, that is 110,366 return trips to the Moon; 32,977 rotations of Earth; with the Sun — 655.3 billion km around the Galactic centre, 25.3 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 385 million km away; today it is 246 million km (closer by 1.6×).
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 August 19, 2028; Jupiter — in 2031; a full moon exactly on this date — June 20, 2035
sidereal periods: Mars 686.98 d, Jupiter 11.862 yr - How far the sky has drifted since [EXACT]
The vernal point has shifted 4,536″ 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.