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The sky on July 15, 2012 — as it really was

That day the Sun stood in Gemini, while the horoscope says "Cancer". The gap is 24.0° of precession.

РЫБЫОВЕНТЕЛЕЦБЛИЗНЕЦЫРАКЛЕВДЕВАВЕСЫСКОРПИОНЗМЕЕНОСЕЦСТРЕЛЕЦКОЗЕРОГВОДОЛЕЙ ♈︎♉︎♊︎♋︎♌︎♍︎♎︎♏︎♐︎♑︎♒︎♓︎ ♃–♂ 119.3°☽–☿ 60.9°♀–☿ 59.7°☉–♄ 89.7° ♃︎7° ☽︎11° ♀︎12° ☉︎23° ☿︎12° ♂︎6° ♄︎23°

Bodies on the ecliptic (noon UTC)

  • ☉︎ Sun — 113.4° · sign Cancer · constellation Gemini
  • ☽︎ Moon — 71.7° · sign Gemini · constellation Taurus
  • ☿︎ Mercury — 132.5° · sign Leo · constellation Cancer
  • ♀︎ Venus — 72.8° · sign Gemini · constellation Taurus
  • ♂︎ Mars — 186.5° · sign Libra · constellation Virgo
  • ♃︎ Jupiter — 67.2° · sign Gemini · constellation Taurus
  • ♄︎ Saturn — 203.1° · 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.

  1. The Moon that day [EXACT]

    waning crescent, 13% lit; the Moon was 403,036 km away.

    astronomy-engine
  2. How far Earth has travelled since [EXACT]

    14.2 orbits of the Sun — 13,364 million km, that is 17,383 return trips to the Moon; 5,194 rotations of Earth; with the Sun — 103.2 billion km around the Galactic centre, 4 light-days.

    29.78 km/s along the orbit; 230 km/s around the Galactic centre
  3. Mars then and now [EXACT]

    On that day Mars was 227 million km away; today it is 245 million km (farther by 1.1×).

    astronomy-engine; checked against JPL Horizons for 2026-09-14
  4. Solar cycle [ESTIMATE]

    That day fell in solar cycle 24, on the rise to maximum (33% through the cycle).

    SILSO smoothed minima
  5. When the sky repeats [EXACT]

    Mars returns to that day’s point of its orbit on August 2, 2027; Jupiter — in 2036; a full moon exactly on this date — July 15, 2030

    sidereal periods: Mars 686.98 d, Jupiter 11.862 yr
  6. 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
  7. Picture of the day [EXACT]

    NASA Astronomy Picture of the Day for this date: apod.nasa.gov/apod/ap120715.html

    NASA APOD

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