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The sky on October 21, 1965 — as it really was

That day the Sun stood in Virgo, while the horoscope says "Libra". The gap is 23.4° of precession.

РЫБЫОВЕНТЕЛЕЦБЛИЗНЕЦЫРАКЛЕВДЕВАВЕСЫСКОРПИОНЗМЕЕНОСЕЦСТРЕЛЕЦКОЗЕРОГВОДОЛЕЙ ♈︎♉︎♊︎♋︎♌︎♍︎♎︎♏︎♐︎♑︎♒︎♓︎ ☿–♄ 117.7°♂–♄ 88.6°♀–♄ 87.7° ♃︎1° ☽︎17° ☉︎27° ☿︎13° ♂︎12° ♀︎13° ♄︎10°

Bodies on the ecliptic (noon UTC)

  • ☉︎ Sun — 207.9° · sign Libra · constellation Virgo
  • ☽︎ Moon — 167.3° · sign Virgo · constellation Leo
  • ☿︎ Mercury — 223.2° · sign Scorpio · constellation Libra
  • ♀︎ Venus — 253.3° · sign Sagittarius · constellation Scorpius
  • ♂︎ Mars — 252.3° · sign Sagittarius · constellation Ophiuchus
  • ♃︎ Jupiter — 91.3° · sign Cancer · constellation Gemini
  • ♄︎ Saturn — 341.0° · sign Pisces · constellation Aquarius
  • ☽︎ Moon 12% 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, 12% lit; the Moon was 368,725 km away.

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

    61 orbits of the Sun — 57,282 million km, that is 74,509 return trips to the Moon; 22,263 rotations of Earth; with the Sun — 442.4 billion km around the Galactic centre, 17.1 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 293 million km away; today it is 246 million km (closer by 1.2×).

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

    That day fell in solar cycle 20, right at the minimum (9% through the cycle).

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

    Mars returns to that day’s point of its orbit on November 15, 2027; Jupiter — in 2036; a full moon exactly on this date — October 21, 2059

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

    The vernal point has shifted 3,060″ since that day; the real constellations now sit 23.4° away from the astrologers’ “signs”.

    precession 50.29″/yr

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