The sky on October 31, 1983 — as it really was
That day the Sun stood in Virgo, while the horoscope says "Scorpio". The gap is 23.6° of precession.
Bodies on the ecliptic (noon UTC)
- ☉︎ Sun — 217.5° · sign Scorpio · constellation Virgo
- ☽︎ Moon — 158.7° · sign Virgo · constellation Leo
- ☿︎ Mercury — 218.0° · sign Scorpio · constellation Libra
- ♀︎ Venus — 171.0° · sign Virgo · constellation Leo
- ♂︎ Mars — 169.3° · sign Virgo · constellation Leo
- ♃︎ Jupiter — 252.3° · sign Sagittarius · constellation Ophiuchus
- ♄︎ Saturn — 217.3° · sign Scorpio · constellation Libra
- ☽︎ Moon 24% 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]
waning crescent, 24% lit; the Moon was 367,923 km away.
astronomy-engine - How far Earth has travelled since [EXACT]
42.9 orbits of the Sun — 40,345 million km, that is 52,478 return trips to the Moon; 15,680 rotations of Earth; with the Sun — 311.6 billion km around the Galactic centre, 12 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 322 million km away; today it is 244 million km (closer by 1.3×).
astronomy-engine; checked against JPL Horizons for 2026-09-14 - Solar cycle [ESTIMATE]
That day fell in solar cycle 21, on the decline (73% through the cycle).
SILSO smoothed minima - When the sky repeats [EXACT]
Mars returns to that day’s point of its orbit on February 3, 2027; Jupiter — in 2030.
sidereal periods: Mars 686.98 d, Jupiter 11.862 yr - How far the sky has drifted since [EXACT]
The vernal point has shifted 2,160″ since that day; the real constellations now sit 23.6° away from the astrologers’ “signs”.
precession 50.29″/yr
Other dates
Computed from the date only; nothing about you is stored.