The sky on May 13, 1933 — as it really was
That day the Sun stood in Aries, while the horoscope says "Taurus". The gap is 22.9° of precession.
Bodies on the ecliptic (noon UTC)
- ☉︎ Sun — 52.3° · sign Taurus · constellation Aries
- ☽︎ Moon — 282.8° · sign Capricorn · constellation Sagittarius
- ☿︎ Mercury — 35.6° · sign Taurus · constellation Aries
- ♀︎ Venus — 58.0° · sign Taurus · constellation Taurus
- ♂︎ Mars — 156.1° · sign Virgo · constellation Leo
- ♃︎ Jupiter — 163.3° · sign Virgo · constellation Leo
- ♄︎ Saturn — 316.2° · sign Aquarius · constellation Capricornus
- ☽︎ Moon 82% 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 gibbous, 82% lit; the Moon was 364,527 km away.
astronomy-engine - How far Earth has travelled since [EXACT]
93.4 orbits of the Sun — 87,770 million km, that is 114,166 return trips to the Moon; 34,112 rotations of Earth; with the Sun — 677.9 billion km around the Galactic centre, 26.2 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 159 million km away; today it is 245 million km (farther by 1.5×).
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 May 29, 2027; Jupiter — in 2028; a full moon exactly on this date — May 12, 2063
sidereal periods: Mars 686.98 d, Jupiter 11.862 yr - How far the sky has drifted since [EXACT]
The vernal point has shifted 4,680″ since that day; the real constellations now sit 22.9° away from the astrologers’ “signs”.
precession 50.29″/yr
Other dates
Computed from the date only; nothing about you is stored.