The sky on May 13, 1958 — as it really was
That day the Sun stood in Aries, while the horoscope says "Taurus". The gap is 23.3° of precession.
Bodies on the ecliptic (noon UTC)
- ☉︎ Sun — 52.2° · sign Taurus · constellation Aries
- ☽︎ Moon — 354.1° · sign Pisces · constellation Pisces
- ☿︎ Mercury — 26.4° · sign Aries · constellation Pisces
- ♀︎ Venus — 8.8° · sign Aries · constellation Cetus
- ♂︎ Mars — 342.0° · sign Pisces · constellation Aquarius
- ♃︎ Jupiter — 203.7° · sign Libra · constellation Virgo
- ♄︎ Saturn — 264.6° · sign Sagittarius · constellation Ophiuchus
- ☽︎ Moon 24% 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 crescent, 24% lit; the Moon was 404,990 km away.
astronomy-engine - How far Earth has travelled since [EXACT]
68.4 orbits of the Sun — 64,277 million km, that is 83,607 return trips to the Moon; 24,981 rotations of Earth; with the Sun — 496.4 billion km around the Galactic centre, 19.2 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 206 million km away; today it is 245 million km (farther by 1.2×).
astronomy-engine; checked against JPL Horizons for 2026-09-14 - Solar cycle [ESTIMATE]
That day fell in solar cycle 19, on the rise to maximum (39% through the cycle).
SILSO smoothed minima - When the sky repeats [EXACT]
Mars returns to that day’s point of its orbit on December 15, 2027; Jupiter — in 2029; 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 3,420″ since that day; the real constellations now sit 23.3° away from the astrologers’ “signs”.
precession 50.29″/yr
Other dates
Computed from the date only; nothing about you is stored.