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The sky on March 13, 1992 — as it really was

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

РЫБЫОВЕНТЕЛЕЦБЛИЗНЕЦЫРАКЛЕВДЕВАВЕСЫСКОРПИОНЗМЕЕНОСЕЦСТРЕЛЕЦКОЗЕРОГВОДОЛЕЙ ♈︎♉︎♊︎♋︎♌︎♍︎♎︎♏︎♐︎♑︎♒︎♓︎ ☿–☽ 90.8° ☿︎10° ☽︎11° ♃︎7° ♄︎14° ♂︎18° ♀︎29° ☉︎23°

Bodies on the ecliptic (noon UTC)

  • ☉︎ Sun — 353.2° · sign Pisces · constellation Pisces
  • ☽︎ Moon — 101.2° · sign Cancer · constellation Gemini
  • ☿︎ Mercury — 10.4° · sign Aries · constellation Pisces
  • ♀︎ Venus — 329.4° · sign Aquarius · constellation Aquarius
  • ♂︎ Mars — 318.7° · sign Aquarius · constellation Capricornus
  • ♃︎ Jupiter — 158.0° · sign Virgo · constellation Leo
  • ♄︎ Saturn — 314.2° · sign Aquarius · constellation Capricornus
  • ☽︎ Moon 66% 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]

    first quarter, 66% lit; the Moon was 368,919 km away.

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

    34.6 orbits of the Sun — 32,479 million km, that is 42,247 return trips to the Moon; 12,623 rotations of Earth; with the Sun — 250.8 billion km around the Galactic centre, 9.7 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 316 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, near maximum (56% through the cycle).

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

    Mars returns to that day’s point of its orbit on December 8, 2027; Jupiter — in 2028; a full moon exactly on this date — March 13, 2055

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

    The vernal point has shifted 1,728″ since that day; the real constellations now sit 23.8° away from the astrologers’ “signs”.

    precession 50.29″/yr

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