The sky on September 20, 1954 — as it really was
That day the Sun stood in Virgo — sign and constellation agree here.
Bodies on the ecliptic (noon UTC)
- ☉︎ Sun — 177.0° · sign Virgo · constellation Virgo
- ☽︎ Moon — 100.1° · sign Cancer · constellation Gemini
- ☿︎ Mercury — 198.5° · sign Libra · constellation Virgo
- ♀︎ Venus — 222.2° · sign Scorpio · constellation Libra
- ♂︎ Mars — 281.7° · sign Capricorn · constellation Sagittarius
- ♃︎ Jupiter — 115.0° · sign Cancer · constellation Gemini
- ♄︎ Saturn — 216.9° · sign Scorpio · constellation Libra
- ☽︎ Moon 39% 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]
last quarter, 39% lit; the Moon was 378,511 km away.
astronomy-engine - How far Earth has travelled since [EXACT]
72 orbits of the Sun — 67,706 million km, that is 88,067 return trips to the Moon; 26,314 rotations of Earth; with the Sun — 522.9 billion km around the Galactic centre, 20.2 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 109 million km away; today it is 243 million km (farther by 2.2×).
astronomy-engine; checked against JPL Horizons for 2026-09-14 - Solar cycle [ESTIMATE]
That day fell in solar cycle 19, right at the minimum (4% through the cycle).
SILSO smoothed minima - When the sky repeats [EXACT]
Mars returns to that day’s point of its orbit on January 27, 2028; Jupiter — in 2037; a full moon exactly on this date — September 20, 2051
sidereal periods: Mars 686.98 d, Jupiter 11.862 yr - How far the sky has drifted since [EXACT]
The vernal point has shifted 3,600″ 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.