The sky on December 4, 1926 — as it really was
That day the Sun stood in Ophiuchus, while the horoscope says "Sagittarius". The gap is 22.8° of precession.
Bodies on the ecliptic (noon UTC)
- ☉︎ Sun — 251.6° · sign Sagittarius · constellation Ophiuchus
- ☽︎ Moon — 242.4° · sign Sagittarius · constellation Scorpius
- ☿︎ Mercury — 235.3° · sign Scorpio · constellation Libra
- ♀︎ Venus — 254.8° · sign Sagittarius · constellation Ophiuchus
- ♂︎ Mars — 34.6° · sign Taurus · constellation Aries
- ♃︎ Jupiter — 321.4° · sign Aquarius · constellation Capricornus
- ♄︎ Saturn — 240.2° · sign Sagittarius · constellation Libra
- ☽︎ Moon 1% 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, 1% lit; the Moon was 387,181 km away.
astronomy-engine - How far Earth has travelled since [EXACT]
99.8 orbits of the Sun — 93,829 million km, that is 122,046 return trips to the Moon; 36,467 rotations of Earth; with the Sun — 724.7 billion km around the Galactic centre, 28 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 87 million km away; today it is 242 million km (farther by 2.8×).
astronomy-engine; checked against JPL Horizons for 2026-09-14 - When the sky repeats [EXACT]
Mars returns to that day’s point of its orbit on June 28, 2028; Jupiter — in 2033; a full moon exactly on this date — December 3, 2036
sidereal periods: Mars 686.98 d, Jupiter 11.862 yr - How far the sky has drifted since [EXACT]
The vernal point has shifted 5,004″ since that day; the real constellations now sit 22.8° away from the astrologers’ “signs”.
precession 50.29″/yr
Other dates
Computed from the date only; nothing about you is stored.