The sky on July 13, 1926 — as it really was
That day the Sun stood in Gemini, while the horoscope says "Cancer". The gap is 22.8° of precession.
Bodies on the ecliptic (noon UTC)
- ☉︎ Sun — 110.3° · sign Cancer · constellation Gemini
- ☽︎ Moon — 149.4° · sign Leo · constellation Leo
- ☿︎ Mercury — 136.5° · sign Leo · constellation Cancer
- ♀︎ Venus — 77.2° · sign Gemini · constellation Taurus
- ♂︎ Mars — 18.8° · sign Aries · constellation Pisces
- ♃︎ Jupiter — 326.0° · sign Aquarius · constellation Capricornus
- ♄︎ Saturn — 229.5° · sign Scorpio · constellation Libra
- ☽︎ Moon 11% 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]
waxing crescent, 11% lit; the Moon was 405,292 km away.
astronomy-engine - How far Earth has travelled since [EXACT]
100.2 orbits of the Sun — 94,193 million km, that is 122,519 return trips to the Moon; 36,608 rotations of Earth; with the Sun — 727.5 billion km around the Galactic centre, 28.1 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 136 million km away; today it is 245 million km (farther by 1.8×).
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 February 5, 2028; Jupiter — in 2033.
sidereal periods: Mars 686.98 d, Jupiter 11.862 yr - How far the sky has drifted since [EXACT]
The vernal point has shifted 5,040″ 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.