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The sky on December 3, 1992 — as it really was

That day the Sun stood in Ophiuchus, while the horoscope says "Sagittarius". The gap is 23.8° of precession.

РЫБЫОВЕНТЕЛЕЦБЛИЗНЕЦЫРАКЛЕВДЕВАВЕСЫСКОРПИОНЗМЕЕНОСЕЦСТРЕЛЕЦКОЗЕРОГВОДОЛЕЙ ♈︎♉︎♊︎♋︎♌︎♍︎♎︎♏︎♐︎♑︎♒︎♓︎ ♂–☽ 122.4°♃–☉ 61.5°☿–♀ 61.2°☿–☽ 122.5°☉–♄ 62.2°♀–☽ 61.3° ♂︎27° ♃︎10° ☿︎22° ☉︎11° ♀︎23° ♄︎13° ☽︎25°

Bodies on the ecliptic (noon UTC)

  • ☉︎ Sun — 251.6° · sign Sagittarius · constellation Ophiuchus
  • ☽︎ Moon — 355.1° · sign Pisces · constellation Pisces
  • ☿︎ Mercury — 232.6° · sign Scorpio · constellation Libra
  • ♀︎ Venus — 293.8° · sign Capricorn · constellation Sagittarius
  • ♂︎ Mars — 117.5° · sign Cancer · constellation Cancer
  • ♃︎ Jupiter — 190.1° · sign Libra · constellation Virgo
  • ♄︎ Saturn — 313.7° · sign Aquarius · constellation Capricornus
  • ☽︎ Moon 62% 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, 62% lit; the Moon was 402,590 km away.

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

    33.8 orbits of the Sun — 31,801 million km, that is 41,365 return trips to the Moon; 12,360 rotations of Earth; with the Sun — 245.6 billion km around the Galactic centre, 9.5 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 107 million km away; today it is 244 million km (farther by 2.3×).

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

    That day fell in solar cycle 22, on the decline (63% through the cycle).

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

    Mars returns to that day’s point of its orbit on October 12, 2026; Jupiter — in 2028.

    sidereal periods: Mars 686.98 d, Jupiter 11.862 yr
  6. How far the sky has drifted since [EXACT]

    The vernal point has shifted 1,692″ since that day; the real constellations now sit 23.8° away from the astrologers’ “signs”.

    precession 50.29″/yr

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