The sky on June 21, 1964 — as it really was
That day the Sun stood in Gemini, while the horoscope says "Cancer". The gap is 23.4° of precession.
Bodies on the ecliptic (noon UTC)
- ☉︎ Sun — 90.1° · sign Cancer · constellation Gemini
- ☽︎ Moon — 231.6° · sign Scorpio · constellation Libra
- ☿︎ Mercury — 83.0° · sign Gemini · constellation Taurus
- ♀︎ Venus — 87.7° · sign Gemini · constellation Orion
- ♂︎ Mars — 62.9° · sign Gemini · constellation Taurus
- ♃︎ Jupiter — 46.1° · sign Taurus · constellation Aries
- ♄︎ Saturn — 335.0° · sign Pisces · constellation Aquarius
- ☽︎ Moon 89% 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 gibbous, 89% lit; the Moon was 404,610 km away.
astronomy-engine - How far Earth has travelled since [EXACT]
62.3 orbits of the Sun — 58,535 million km, that is 76,139 return trips to the Moon; 22,750 rotations of Earth; with the Sun — 452.1 billion km around the Galactic centre, 17.5 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 342 million km away; today it is 246 million km (closer by 1.4×).
astronomy-engine; checked against JPL Horizons for 2026-09-14 - Solar cycle [ESTIMATE]
That day fell in solar cycle 19, on the decline (97% through the cycle).
SILSO smoothed minima - When the sky repeats [EXACT]
Mars returns to that day’s point of its orbit on June 2, 2028; Jupiter — in 2035; 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 3,132″ since that day; the real constellations now sit 23.4° away from the astrologers’ “signs”.
precession 50.29″/yr
Other dates
Computed from the date only; nothing about you is stored.