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The sky on May 16, 1965 — as it really was

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

РЫБЫОВЕНТЕЛЕЦБЛИЗНЕЦЫРАКЛЕВДЕВАВЕСЫСКОРПИОНЗМЕЕНОСЕЦСТРЕЛЕЦКОЗЕРОГВОДОЛЕЙ ♈︎♉︎♊︎♋︎♌︎♍︎♎︎♏︎♐︎♑︎♒︎♓︎ ♀–☽ 177.4°♃–☽ 178.5° ☿︎1° ☉︎25° ♀︎4° ♃︎5° ♂︎12° ☽︎6° ♄︎15°

Bodies on the ecliptic (noon UTC)

  • ☉︎ Sun — 55.4° · sign Taurus · constellation Taurus
  • ☽︎ Moon — 247.0° · sign Sagittarius · constellation Scorpius
  • ☿︎ Mercury — 31.3° · sign Taurus · constellation Pisces
  • ♀︎ Venus — 64.4° · sign Gemini · constellation Taurus
  • ♂︎ Mars — 162.6° · sign Virgo · constellation Leo
  • ♃︎ Jupiter — 65.4° · sign Gemini · constellation Taurus
  • ♄︎ Saturn — 345.8° · sign Pisces · constellation Aquarius
  • ☽︎ Moon 99% 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]

    full moon, 99% lit; the Moon was 396,544 km away.

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

    61.4 orbits of the Sun — 57,693 million km, that is 75,044 return trips to the Moon; 22,423 rotations of Earth; with the Sun — 445.6 billion km around the Galactic centre, 17.2 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 150 million km away; today it is 244 million km (farther by 1.6×).

    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 (5% through the cycle).

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

    Mars returns to that day’s point of its orbit on June 10, 2027; Jupiter — in 2036; a full moon exactly on this date — May 16, 2041

    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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