The sky on July 17, 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 — 114.1° · sign Cancer · constellation Gemini
- ☽︎ Moon — 197.1° · sign Libra · constellation Virgo
- ☿︎ Mercury — 139.2° · sign Leo · constellation Leo
- ♀︎ Venus — 81.9° · sign Gemini · constellation Taurus
- ♂︎ Mars — 21.3° · sign Aries · constellation Pisces
- ♃︎ Jupiter — 325.7° · sign Aquarius · constellation Capricornus
- ♄︎ Saturn — 229.5° · sign Scorpio · constellation Libra
- ☽︎ Moon 44% 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]
first quarter, 44% lit; the Moon was 399,478 km away.
astronomy-engine - How far Earth has travelled since [EXACT]
100.2 orbits of the Sun — 94,185 million km, that is 122,510 return trips to the Moon; 36,605 rotations of Earth; with the Sun — 727.4 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 133 million km away; today it is 244 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 9, 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.