The sky on January 5, 2020 — as it really was
That day the Sun stood in Sagittarius, while the horoscope says "Capricorn". The gap is 24.1° of precession.
Bodies on the ecliptic (noon UTC)
- ☉︎ Sun — 284.6° · sign Capricorn · constellation Sagittarius
- ☽︎ Moon — 40.0° · sign Taurus · constellation Cetus
- ☿︎ Mercury — 281.5° · sign Capricorn · constellation Sagittarius
- ♀︎ Venus — 319.9° · sign Aquarius · constellation Capricornus
- ♂︎ Mars — 241.4° · sign Sagittarius · constellation Libra
- ♃︎ Jupiter — 277.7° · sign Capricorn · constellation Sagittarius
- ♄︎ Saturn — 291.9° · sign Capricorn · constellation Sagittarius
- ☽︎ Moon 72% 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 gibbous, 72% lit; the Moon was 397,043 km away.
astronomy-engine - How far Earth has travelled since [EXACT]
6.8 orbits of the Sun — 6,344 million km, that is 8,252 return trips to the Moon; 2,466 rotations of Earth; with the Sun — 49 billion km around the Galactic centre, 1.9 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 322 million km away; today it is 244 million km (closer by 1.3×).
astronomy-engine; checked against JPL Horizons for 2026-09-14 - Solar cycle [ESTIMATE]
That day fell in solar cycle 25, right at the minimum (1% through the cycle).
SILSO smoothed minima - When the sky repeats [EXACT]
Mars returns to that day’s point of its orbit on July 15, 2027; Jupiter — in 2032; a full moon exactly on this date — January 4, 2034
sidereal periods: Mars 686.98 d, Jupiter 11.862 yr - How far the sky has drifted since [EXACT]
The vernal point has shifted 324″ since that day; the real constellations now sit 24.1° 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/ap200105.html
NASA APOD
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