The sky on January 6, 2003 — as it really was
That day the Sun stood in Sagittarius, while the horoscope says "Capricorn". The gap is 23.9° of precession.
Bodies on the ecliptic (noon UTC)
- ☉︎ Sun — 285.7° · sign Capricorn · constellation Sagittarius
- ☽︎ Moon — 330.6° · sign Pisces · constellation Aquarius
- ☿︎ Mercury — 297.1° · sign Capricorn · constellation Sagittarius
- ♀︎ Venus — 239.0° · sign Scorpio · constellation Libra
- ♂︎ Mars — 233.1° · sign Scorpio · constellation Libra
- ♃︎ Jupiter — 136.4° · sign Leo · constellation Cancer
- ♄︎ Saturn — 84.0° · sign Gemini · constellation Taurus
- ☽︎ Moon 15% 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, 15% lit; the Moon was 392,151 km away.
astronomy-engine - How far Earth has travelled since [EXACT]
23.7 orbits of the Sun — 22,313 million km, that is 29,024 return trips to the Moon; 8,672 rotations of Earth; with the Sun — 172.3 billion km around the Galactic centre, 6.7 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 300 million km away; today it is 245 million km (closer by 1.2×).
astronomy-engine; checked against JPL Horizons for 2026-09-14 - Solar cycle [ESTIMATE]
That day fell in solar cycle 23, near maximum (52% through the cycle).
SILSO smoothed minima - When the sky repeats [EXACT]
Mars returns to that day’s point of its orbit on June 20, 2027; Jupiter — in 2039; a full moon exactly on this date — January 6, 2042
sidereal periods: Mars 686.98 d, Jupiter 11.862 yr - How far the sky has drifted since [EXACT]
The vernal point has shifted 1,188″ since that day; the real constellations now sit 23.9° 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/ap030106.html
NASA APOD
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