The sky on June 21, 1955 — as it really was
That day the Sun stood in Taurus, while the horoscope says "Gemini". The gap is 23.2° of precession.
Bodies on the ecliptic (noon UTC)
- ☉︎ Sun — 89.3° · sign Gemini · constellation Taurus
- ☽︎ Moon — 108.0° · sign Cancer · constellation Gemini
- ☿︎ Mercury — 81.6° · sign Gemini · constellation Taurus
- ♀︎ Venus — 69.9° · sign Gemini · constellation Taurus
- ♂︎ Mars — 107.2° · sign Cancer · constellation Gemini
- ♃︎ Jupiter — 121.7° · sign Leo · constellation Cancer
- ♄︎ Saturn — 225.1° · sign Scorpio · constellation Libra
- ☽︎ Moon 3% 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]
new moon, 3% lit; the Moon was 361,421 km away.
astronomy-engine - How far Earth has travelled since [EXACT]
71.3 orbits of the Sun — 66,996 million km, that is 87,143 return trips to the Moon; 26,038 rotations of Earth; with the Sun — 517.4 billion km around the Galactic centre, 20 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 384 million km away; today it is 245 million km (closer by 1.6×).
astronomy-engine; checked against JPL Horizons for 2026-09-14 - Solar cycle [ESTIMATE]
That day fell in solar cycle 19, right at the minimum (12% through the cycle).
SILSO smoothed minima - When the sky repeats [EXACT]
Mars returns to that day’s point of its orbit on December 10, 2026; Jupiter — in 2038; 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 3,564″ since that day; the real constellations now sit 23.2° away from the astrologers’ “signs”.
precession 50.29″/yr
Other dates
Computed from the date only; nothing about you is stored.