The sky on July 28, 1930 — as it really was
That day the Sun stood in Cancer, while the horoscope says "Leo". The gap is 22.9° of precession.
Bodies on the ecliptic (noon UTC)
- ☉︎ Sun — 124.7° · sign Leo · constellation Cancer
- ☽︎ Moon — 162.1° · sign Virgo · constellation Leo
- ☿︎ Mercury — 138.5° · sign Leo · constellation Leo
- ♀︎ Venus — 165.9° · sign Virgo · constellation Leo
- ♂︎ Mars — 69.7° · sign Gemini · constellation Taurus
- ♃︎ Jupiter — 97.0° · sign Cancer · constellation Gemini
- ♄︎ Saturn — 276.7° · sign Capricorn · constellation Sagittarius
- ☽︎ Moon 10% 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, 10% lit; the Moon was 361,613 km away.
astronomy-engine - How far Earth has travelled since [EXACT]
96.2 orbits of the Sun — 90,397 million km, that is 117,582 return trips to the Moon; 35,133 rotations of Earth; with the Sun — 698.2 billion km around the Galactic centre, 27 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 263 million km away; today it is 244 million km (closer 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 May 17, 2028; Jupiter — in 2037; a full moon exactly on this date — July 28, 2064
sidereal periods: Mars 686.98 d, Jupiter 11.862 yr - How far the sky has drifted since [EXACT]
The vernal point has shifted 4,824″ since that day; the real constellations now sit 22.9° away from the astrologers’ “signs”.
precession 50.29″/yr
Other dates
Computed from the date only; nothing about you is stored.