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The sky on February 17, 1965 — as it really was

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

РЫБЫОВЕНТЕЛЕЦБЛИЗНЕЦЫРАКЛЕВДЕВАВЕСЫСКОРПИОНЗМЕЕНОСЕЦСТРЕЛЕЦКОЗЕРОГВОДОЛЕЙ ♈︎♉︎♊︎♋︎♌︎♍︎♎︎♏︎♐︎♑︎♒︎♓︎ ♃–☽ 120.4° ♃︎18° ☽︎18° ♂︎25° ♀︎15° ☿︎23° ☉︎28° ♄︎6°

Bodies on the ecliptic (noon UTC)

  • ☉︎ Sun — 328.6° · sign Aquarius · constellation Aquarius
  • ☽︎ Moon — 168.9° · sign Virgo · constellation Leo
  • ☿︎ Mercury — 323.3° · sign Aquarius · constellation Capricornus
  • ♀︎ Venus — 315.2° · sign Aquarius · constellation Capricornus
  • ♂︎ Mars — 175.6° · sign Virgo · constellation Virgo
  • ♃︎ Jupiter — 48.5° · sign Taurus · constellation Aries
  • ♄︎ Saturn — 336.5° · sign Pisces · constellation Aquarius
  • ☽︎ Moon 97% 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, 97% lit; the Moon was 368,253 km away.

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

    61.6 orbits of the Sun — 57,921 million km, that is 75,339 return trips to the Moon; 22,511 rotations of Earth; with the Sun — 447.3 billion km around the Galactic centre, 17.3 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 108 million km away; today it is 243 million km (farther by 2.2×).

    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 (3% through the cycle).

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

    Mars returns to that day’s point of its orbit on March 14, 2027; Jupiter — in 2036.

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

    The vernal point has shifted 3,096″ since that day; the real constellations now sit 23.4° away from the astrologers’ “signs”.

    precession 50.29″/yr

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