The sky on December 19, 1926 — as it really was
That day the Sun stood in Sagittarius — sign and constellation agree here.
Bodies on the ecliptic (noon UTC)
- ☉︎ Sun — 266.8° · sign Sagittarius · constellation Sagittarius
- ☽︎ Moon — 89.8° · sign Gemini · constellation Gemini
- ☿︎ Mercury — 246.5° · sign Sagittarius · constellation Ophiuchus
- ♀︎ Venus — 273.6° · sign Capricorn · constellation Sagittarius
- ♂︎ Mars — 35.5° · sign Taurus · constellation Aries
- ♃︎ Jupiter — 323.9° · sign Aquarius · constellation Capricornus
- ♄︎ Saturn — 241.9° · sign Sagittarius · constellation Scorpius
- ☽︎ Moon 100% 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]
full moon, 100% lit; the Moon was 383,879 km away.
astronomy-engine - How far Earth has travelled since [EXACT]
99.8 orbits of the Sun — 93,788 million km, that is 121,993 return trips to the Moon; 36,451 rotations of Earth; with the Sun — 724.4 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 103 million km away; today it is 243 million km (farther by 2.4×).
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 July 13, 2028; Jupiter — in 2033; a full moon exactly on this date — December 18, 2040
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.