The sky on March 17, 1927 — as it really was
That day the Sun stood in Pisces — sign and constellation agree here.
Bodies on the ecliptic (noon UTC)
- ☉︎ Sun — 355.9° · sign Pisces · constellation Pisces
- ☽︎ Moon — 165.7° · sign Virgo · constellation Leo
- ☿︎ Mercury — 348.4° · sign Pisces · constellation Pisces
- ♀︎ Venus — 23.3° · sign Aries · constellation Pisces
- ♂︎ Mars — 72.6° · sign Gemini · constellation Taurus
- ♃︎ Jupiter — 343.7° · sign Pisces · constellation Aquarius
- ♄︎ Saturn — 247.7° · sign Sagittarius · constellation Ophiuchus
- ☽︎ Moon 99% 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]
full moon, 99% lit; the Moon was 405,795 km away.
astronomy-engine - How far Earth has travelled since [EXACT]
99.6 orbits of the Sun — 93,562 million km, that is 121,698 return trips to the Moon; 36,363 rotations of Earth; with the Sun — 722.6 billion km around the Galactic centre, 27.9 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 228 million km away; today it is 243 million km (farther by 1.1×).
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 November 22, 2026; Jupiter — in 2034; a full moon exactly on this date — March 17, 2060
sidereal periods: Mars 686.98 d, Jupiter 11.862 yr - How far the sky has drifted since [EXACT]
The vernal point has shifted 5,004″ since that day; the real constellations now sit 22.8° away from the astrologers’ “signs”.
precession 50.29″/yr
Other dates
Computed from the date only; nothing about you is stored.