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The sky on January 22, 1990 — as it really was

That day the Sun stood in Capricornus, while the horoscope says "Aquarius". The gap is 23.7° of precession.

РЫБЫОВЕНТЕЛЕЦБЛИЗНЕЦЫРАКЛЕВДЕВАВЕСЫСКОРПИОНЗМЕЕНОСЕЦСТРЕЛЕЦКОЗЕРОГВОДОЛЕЙ ♈︎♉︎♊︎♋︎♌︎♍︎♎︎♏︎♐︎♑︎♒︎♓︎ ♃︎2° ☽︎11° ♂︎24° ☿︎10° ♄︎18° ♀︎26° ☉︎2°

Bodies on the ecliptic (noon UTC)

  • ☉︎ Sun — 302.2° · sign Aquarius · constellation Capricornus
  • ☽︎ Moon — 251.7° · sign Sagittarius · constellation Scorpius
  • ☿︎ Mercury — 280.0° · sign Capricorn · constellation Sagittarius
  • ♀︎ Venus — 296.4° · sign Capricorn · constellation Sagittarius
  • ♂︎ Mars — 264.9° · sign Sagittarius · constellation Ophiuchus
  • ♃︎ Jupiter — 92.6° · sign Cancer · constellation Gemini
  • ♄︎ Saturn — 288.1° · sign Capricorn · constellation Sagittarius
  • ☽︎ Moon 18% 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, 18% lit; the Moon was 399,606 km away.

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

    36.7 orbits of the Sun — 34,490 million km, that is 44,862 return trips to the Moon; 13,404 rotations of Earth; with the Sun — 266.4 billion km around the Galactic centre, 10.3 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 326 million km away; today it is 245 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 22, on the rise to maximum (34% through the cycle).

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

    Mars returns to that day’s point of its orbit on September 5, 2027; Jupiter — in 2037; a full moon exactly on this date — January 22, 2065

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

    The vernal point has shifted 1,836″ since that day; the real constellations now sit 23.7° away from the astrologers’ “signs”.

    precession 50.29″/yr

Other dates

1990-01-21 1990-01-23 everyone born January 22
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