The sky on February 18, 2012 — as it really was
That day the Sun stood in Aquarius — sign and constellation agree here.
Bodies on the ecliptic (noon UTC)
- ☉︎ Sun — 329.2° · sign Aquarius · constellation Aquarius
- ☽︎ Moon — 287.5° · sign Capricorn · constellation Sagittarius
- ☿︎ Mercury — 338.2° · sign Pisces · constellation Aquarius
- ♀︎ Venus — 12.0° · sign Aries · constellation Pisces
- ♂︎ Mars — 168.9° · sign Virgo · constellation Leo
- ♃︎ Jupiter — 35.1° · sign Taurus · constellation Aries
- ♄︎ Saturn — 209.4° · sign Libra · constellation Virgo
- ☽︎ Moon 13% 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, 13% lit; the Moon was 380,215 km away.
astronomy-engine - How far Earth has travelled since [EXACT]
14.6 orbits of the Sun — 13,746 million km, that is 17,879 return trips to the Moon; 5,342 rotations of Earth; with the Sun — 106.2 billion km around the Galactic centre, 4.1 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 105 million km away; today it is 245 million km (farther by 2.3×).
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 (29% through the cycle).
SILSO smoothed minima - When the sky repeats [EXACT]
Mars returns to that day’s point of its orbit on March 7, 2027; Jupiter — in 2036; a full moon exactly on this date — February 18, 2030
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/ap120218.html
NASA APOD
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