The sky on November 21, 2011 — as it really was
That day the Sun stood in Libra, while the horoscope says "Scorpio". The gap is 24.0° of precession.
Bodies on the ecliptic (noon UTC)
- ☉︎ Sun — 238.8° · sign Scorpio · constellation Libra
- ☽︎ Moon — 186.5° · sign Libra · constellation Virgo
- ☿︎ Mercury — 259.5° · sign Sagittarius · constellation Ophiuchus
- ♀︎ Venus — 263.8° · sign Sagittarius · constellation Ophiuchus
- ♂︎ Mars — 155.0° · sign Virgo · constellation Leo
- ♃︎ Jupiter — 32.3° · sign Taurus · constellation Aries
- ♄︎ Saturn — 204.7° · sign Libra · constellation Virgo
- ☽︎ Moon 20% 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]
waning crescent, 20% lit; the Moon was 364,547 km away.
astronomy-engine - How far Earth has travelled since [EXACT]
14.9 orbits of the Sun — 13,974 million km, that is 18,176 return trips to the Moon; 5,431 rotations of Earth; with the Sun — 107.9 billion km around the Galactic centre, 4.2 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 211 million km away; today it is 246 million km (farther by 1.2×).
astronomy-engine; checked against JPL Horizons for 2026-09-14 - Solar cycle [ESTIMATE]
That day fell in solar cycle 24, on the rise to maximum (27% through the cycle).
SILSO smoothed minima - When the sky repeats [EXACT]
Mars returns to that day’s point of its orbit on December 8, 2026; Jupiter — in 2035; a full moon exactly on this date — November 21, 2029
sidereal periods: Mars 686.98 d, Jupiter 11.862 yr - How far the sky has drifted since [EXACT]
The vernal point has shifted 720″ since that day; the real constellations now sit 24° away from the astrologers’ “signs”.
precession 50.29″/yr - Picture of the day [EXACT]
NASA Astronomy Picture of the Day for this date: apod.nasa.gov/apod/ap111121.html
NASA APOD
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