The sky on January 21, 1942 — as it really was
That day the Sun stood in Capricornus, while the horoscope says "Aquarius". The gap is 23.1° of precession.
Bodies on the ecliptic (noon UTC)
- ☉︎ Sun — 300.8° · sign Aquarius · constellation Capricornus
- ☽︎ Moon — 359.4° · sign Pisces · constellation Pisces
- ☿︎ Mercury — 318.6° · sign Aquarius · constellation Capricornus
- ♀︎ Venus — 319.7° · sign Aquarius · constellation Aquarius
- ♂︎ Mars — 34.9° · sign Taurus · constellation Aries
- ♃︎ Jupiter — 71.8° · sign Gemini · constellation Taurus
- ♄︎ Saturn — 51.6° · sign Taurus · constellation Aries
- ☽︎ 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]
waxing crescent, 24% lit; the Moon was 388,748 km away.
astronomy-engine - How far Earth has travelled since [EXACT]
84.7 orbits of the Sun — 79,601 million km, that is 103,539 return trips to the Moon; 30,937 rotations of Earth; with the Sun — 614.8 billion km around the Galactic centre, 23.7 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 166 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 July 29, 2028; Jupiter — in 2037; a full moon exactly on this date — January 21, 2038
sidereal periods: Mars 686.98 d, Jupiter 11.862 yr - How far the sky has drifted since [EXACT]
The vernal point has shifted 4,248″ since that day; the real constellations now sit 23.1° away from the astrologers’ “signs”.
precession 50.29″/yr
Other dates
Computed from the date only; nothing about you is stored.