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The sky on August 13, 1994 — as it really was

That day the Sun stood in Leo — sign and constellation agree here.

РЫБЫОВЕНТЕЛЕЦБЛИЗНЕЦЫРАКЛЕВДЕВАВЕСЫСКОРПИОНЗМЕЕНОСЕЦСТРЕЛЕЦКОЗЕРОГВОДОЛЕЙ ♈︎♉︎♊︎♋︎♌︎♍︎♎︎♏︎♐︎♑︎♒︎♓︎ ☽–♄ 119.8° ♂︎27° ☉︎20° ☿︎21° ♀︎6° ♃︎7° ☽︎10° ♄︎10°

Bodies on the ecliptic (noon UTC)

  • ☉︎ Sun — 140.5° · sign Leo · constellation Leo
  • ☽︎ Moon — 220.7° · sign Scorpio · constellation Libra
  • ☿︎ Mercury — 141.0° · sign Leo · constellation Leo
  • ♀︎ Venus — 186.1° · sign Libra · constellation Virgo
  • ♂︎ Mars — 87.8° · sign Gemini · constellation Taurus
  • ♃︎ Jupiter — 217.3° · sign Scorpio · constellation Virgo
  • ♄︎ Saturn — 340.4° · sign Pisces · constellation Aquarius
  • ☽︎ Moon 42% 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]

    first quarter, 42% lit; the Moon was 369,534 km away.

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

    32.1 orbits of the Sun — 30,207 million km, that is 39,292 return trips to the Moon; 11,740 rotations of Earth; with the Sun — 233.3 billion km around the Galactic centre, 9 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 278 million km away; today it is 245 million km (closer by 1.1×).

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

    That day fell in solar cycle 22, on the decline (80% through the cycle).

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

    Mars returns to that day’s point of its orbit on June 21, 2028; Jupiter — in 2030; a full moon exactly on this date — August 13, 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 1,620″ since that day; the real constellations now sit 23.8° away from the astrologers’ “signs”.

    precession 50.29″/yr

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