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The sky on January 7, 2020 — as it really was

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

РЫБЫОВЕНТЕЛЕЦБЛИЗНЕЦЫРАКЛЕВДЕВАВЕСЫСКОРПИОНЗМЕЕНОСЕЦСТРЕЛЕЦКОЗЕРОГВОДОЛЕЙ ♈︎♉︎♊︎♋︎♌︎♍︎♎︎♏︎♐︎♑︎♒︎♓︎ ☽–♂ 177.5° ☽︎5° ♂︎2° ♃︎8° ☿︎14° ☉︎16° ♄︎22° ♀︎22°

Bodies on the ecliptic (noon UTC)

  • ☉︎ Sun — 286.6° · sign Capricorn · constellation Sagittarius
  • ☽︎ Moon — 65.3° · sign Gemini · constellation Taurus
  • ☿︎ Mercury — 284.7° · sign Capricorn · constellation Sagittarius
  • ♀︎ Venus — 322.4° · sign Aquarius · constellation Capricornus
  • ♂︎ Mars — 242.8° · sign Sagittarius · constellation Scorpius
  • ♃︎ Jupiter — 278.2° · sign Capricorn · constellation Sagittarius
  • ♄︎ Saturn — 292.2° · sign Capricorn · constellation Sagittarius
  • ☽︎ Moon 88% 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]

    waxing gibbous, 88% lit; the Moon was 387,389 km away.

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

    6.7 orbits of the Sun — 6,338 million km, that is 8,244 return trips to the Moon; 2,463 rotations of Earth; with the Sun — 49 billion km around the Galactic centre, 1.9 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 320 million km away; today it is 244 million km (closer by 1.3×).

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

    That day fell in solar cycle 25, right at the minimum (1% through the cycle).

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

    Mars returns to that day’s point of its orbit on July 17, 2027; Jupiter — in 2032.

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

    The vernal point has shifted 324″ 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/ap200107.html

    NASA APOD

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