The sky on April 9, 1951 — as it really was
That day the Sun stood in Pisces, while the horoscope says "Aries". The gap is 23.2° of precession.
Bodies on the ecliptic (noon UTC)
- ☉︎ Sun — 18.8° · sign Aries · constellation Pisces
- ☽︎ Moon — 53.6° · sign Taurus · constellation Aries
- ☿︎ Mercury — 37.1° · sign Taurus · constellation Aries
- ♀︎ Venus — 53.0° · sign Taurus · constellation Aries
- ♂︎ Mars — 29.3° · sign Aries · constellation Aries
- ♃︎ Jupiter — 357.2° · sign Pisces · constellation Pisces
- ♄︎ Saturn — 177.5° · sign Virgo · constellation Virgo
- ☽︎ Moon 9% 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, 9% lit; the Moon was 401,459 km away.
astronomy-engine - How far Earth has travelled since [EXACT]
75.5 orbits of the Sun — 70,949 million km, that is 92,285 return trips to the Moon; 27,574 rotations of Earth; with the Sun — 548 billion km around the Galactic centre, 21.2 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 362 million km away; today it is 243 million km (closer 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 20, 2028; Jupiter — in 2034; a full moon exactly on this date — April 9, 2028
sidereal periods: Mars 686.98 d, Jupiter 11.862 yr - How far the sky has drifted since [EXACT]
The vernal point has shifted 3,780″ since that day; the real constellations now sit 23.2° away from the astrologers’ “signs”.
precession 50.29″/yr
Other dates
Computed from the date only; nothing about you is stored.