The sky on July 2, 2013 — as it really was
That day the Sun stood in Gemini, while the horoscope says "Cancer". The gap is 24.1° of precession.
Bodies on the ecliptic (noon UTC)
- ☉︎ Sun — 100.8° · sign Cancer · constellation Gemini
- ☽︎ Moon — 37.3° · sign Taurus · constellation Aries
- ☿︎ Mercury — 111.8° · sign Cancer · constellation Gemini
- ♀︎ Venus — 125.8° · sign Leo · constellation Cancer
- ♂︎ Mars — 82.5° · sign Gemini · constellation Taurus
- ♃︎ Jupiter — 91.5° · sign Cancer · constellation Gemini
- ♄︎ Saturn — 214.8° · sign Scorpio · constellation Virgo
- ☽︎ Moon 28% 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, 28% lit; the Moon was 398,097 km away.
astronomy-engine - How far Earth has travelled since [EXACT]
13.3 orbits of the Sun — 12,462 million km, that is 16,210 return trips to the Moon; 4,843 rotations of Earth; with the Sun — 96.2 billion km around the Galactic centre, 3.7 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 367 million km away; today it is 244 million km (closer by 1.5×).
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 (42% through the cycle).
SILSO smoothed minima - When the sky repeats [EXACT]
Mars returns to that day’s point of its orbit on July 19, 2028; Jupiter — in 2037; a full moon exactly on this date — July 1, 2034
sidereal periods: Mars 686.98 d, Jupiter 11.862 yr - How far the sky has drifted since [EXACT]
The vernal point has shifted 648″ 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/ap130702.html
NASA APOD
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