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The sky on October 5, 2018 — as it really was

That day the Sun stood in Virgo, while the horoscope says "Libra". The gap is 24.1° of precession.

РЫБЫОВЕНТЕЛЕЦБЛИЗНЕЦЫРАКЛЕВДЕВАВЕСЫСКОРПИОНЗМЕЕНОСЕЦСТРЕЛЕЦКОЗЕРОГВОДОЛЕЙ ♈︎♉︎♊︎♋︎♌︎♍︎♎︎♏︎♐︎♑︎♒︎♓︎ ☽–☿ 59.6°☽–♃ 89.7° ☽︎23° ☉︎12° ☿︎22° ♀︎10° ♃︎22° ♄︎3° ♂︎7°

Bodies on the ecliptic (noon UTC)

  • ☉︎ Sun — 192.2° · sign Libra · constellation Virgo
  • ☽︎ Moon — 143.2° · sign Leo · constellation Leo
  • ☿︎ Mercury — 202.8° · sign Libra · constellation Virgo
  • ♀︎ Venus — 220.8° · sign Scorpio · constellation Libra
  • ♂︎ Mars — 307.8° · sign Aquarius · constellation Capricornus
  • ♃︎ Jupiter — 232.9° · sign Scorpio · constellation Libra
  • ♄︎ Saturn — 273.2° · sign Capricorn · constellation Sagittarius
  • ☽︎ Moon 17% 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, 17% lit; the Moon was 366,483 km away.

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

    8 orbits of the Sun — 7,517 million km, that is 9,778 return trips to the Moon; 2,922 rotations of Earth; with the Sun — 58.1 billion km around the Galactic centre, 2.2 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 93 million km away; today it is 245 million km (farther by 2.6×).

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

    That day fell in solar cycle 24, on the decline (90% through the cycle).

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

    Mars returns to that day’s point of its orbit on March 1, 2028; Jupiter — in 2030; a full moon exactly on this date — October 5, 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 396″ since that day; the real constellations now sit 24.1° away from the astrologers’ “signs”.

    precession 50.29″/yr
  7. Picture of the day [EXACT]

    NASA Astronomy Picture of the Day for this date: apod.nasa.gov/apod/ap181005.html

    NASA APOD

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