The sky on December 3, 1958 — as it really was
That day the Sun stood in Ophiuchus, while the horoscope says "Sagittarius". The gap is 23.3° of precession.
Bodies on the ecliptic (noon UTC)
- ☉︎ Sun — 250.8° · sign Sagittarius · constellation Ophiuchus
- ☽︎ Moon — 153.8° · sign Virgo · constellation Leo
- ☿︎ Mercury — 264.8° · sign Sagittarius · constellation Ophiuchus
- ♀︎ Venus — 256.2° · sign Sagittarius · constellation Ophiuchus
- ♂︎ Mars — 48.5° · sign Taurus · constellation Aries
- ♃︎ Jupiter — 228.3° · sign Scorpio · constellation Libra
- ♄︎ Saturn — 266.1° · sign Sagittarius · constellation Sagittarius
- ☽︎ Moon 56% 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, 56% lit; the Moon was 378,042 km away.
astronomy-engine - How far Earth has travelled since [EXACT]
67.8 orbits of the Sun — 63,756 million km, that is 82,929 return trips to the Moon; 24,779 rotations of Earth; with the Sun — 492.4 billion km around the Galactic centre, 19 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 82 million km away; today it is 244 million km (farther by 3×).
astronomy-engine; checked against JPL Horizons for 2026-09-14 - Solar cycle [ESTIMATE]
That day fell in solar cycle 19, on the rise to maximum (45% through the cycle).
SILSO smoothed minima - When the sky repeats [EXACT]
Mars returns to that day’s point of its orbit on July 6, 2028; Jupiter — in 2029.
sidereal periods: Mars 686.98 d, Jupiter 11.862 yr - How far the sky has drifted since [EXACT]
The vernal point has shifted 3,384″ since that day; the real constellations now sit 23.3° away from the astrologers’ “signs”.
precession 50.29″/yr
Other dates
Computed from the date only; nothing about you is stored.