The sky on April 21, 1985 — as it really was
That day the Sun stood in Aries, while the horoscope says "Taurus". The gap is 23.6° of precession.
Bodies on the ecliptic (noon UTC)
- ☉︎ Sun — 31.3° · sign Taurus · constellation Aries
- ☽︎ Moon — 45.2° · sign Taurus · constellation Aries
- ☿︎ Mercury — 7.5° · sign Aries · constellation Cetus
- ♀︎ Venus — 6.2° · sign Aries · constellation Pisces
- ♂︎ Mars — 56.6° · sign Taurus · constellation Taurus
- ♃︎ Jupiter — 314.0° · sign Aquarius · constellation Capricornus
- ♄︎ Saturn — 236.6° · sign Scorpio · constellation Libra
- ☽︎ Moon 1% 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]
new moon, 1% lit; the Moon was 405,489 km away.
astronomy-engine - How far Earth has travelled since [EXACT]
41.5 orbits of the Sun — 38,958 million km, that is 50,673 return trips to the Moon; 15,141 rotations of Earth; with the Sun — 300.9 billion km around the Galactic centre, 11.6 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 355 million km away; today it is 246 million km (closer by 1.4×).
astronomy-engine; checked against JPL Horizons for 2026-09-14 - Solar cycle [ESTIMATE]
That day fell in solar cycle 21, on the decline (87% through the cycle).
SILSO smoothed minima - When the sky repeats [EXACT]
Mars returns to that day’s point of its orbit on July 25, 2028; Jupiter — in 2032; a full moon exactly on this date — April 20, 2027
sidereal periods: Mars 686.98 d, Jupiter 11.862 yr - How far the sky has drifted since [EXACT]
The vernal point has shifted 2,088″ since that day; the real constellations now sit 23.7° away from the astrologers’ “signs”.
precession 50.29″/yr
Other dates
Computed from the date only; nothing about you is stored.