The sky on March 17, 2002 — as it really was
That day the Sun stood in Pisces — sign and constellation agree here.
Bodies on the ecliptic (noon UTC)
- ☉︎ Sun — 356.7° · sign Pisces · constellation Pisces
- ☽︎ Moon — 34.0° · sign Taurus · constellation Cetus
- ☿︎ Mercury — 338.7° · sign Pisces · constellation Aquarius
- ♀︎ Venus — 11.7° · sign Aries · constellation Pisces
- ♂︎ Mars — 41.2° · sign Taurus · constellation Aries
- ♃︎ Jupiter — 96.0° · sign Cancer · constellation Gemini
- ♄︎ Saturn — 69.3° · sign Gemini · constellation Taurus
- ☽︎ 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 402,642 km away.
astronomy-engine - How far Earth has travelled since [EXACT]
24.6 orbits of the Sun — 23,073 million km, that is 30,011 return trips to the Moon; 8,967 rotations of Earth; with the Sun — 178.2 billion km around the Galactic centre, 6.9 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 308 million km away; today it is 245 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 23, near maximum (46% through the cycle).
SILSO smoothed minima - When the sky repeats [EXACT]
Mars returns to that day’s point of its orbit on July 16, 2028; Jupiter — in 2038; a full moon exactly on this date — March 17, 2060
sidereal periods: Mars 686.98 d, Jupiter 11.862 yr - How far the sky has drifted since [EXACT]
The vernal point has shifted 1,224″ 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/ap020317.html
NASA APOD
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