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The sky on November 28, 2017 — as it really was

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

РЫБЫОВЕНТЕЛЕЦБЛИЗНЕЦЫРАКЛЕВДЕВАВЕСЫСКОРПИОНЗМЕЕНОСЕЦСТРЕЛЕЦКОЗЕРОГВОДОЛЕЙ ♈︎♉︎♊︎♋︎♌︎♍︎♎︎♏︎♐︎♑︎♒︎♓︎ ♀–☽ 121.1°♄–☽ 90.0°☿–☽ 89.9° ♂︎23° ♃︎10° ♀︎26° ☉︎6° ♄︎27° ☿︎27° ☽︎27°

Bodies on the ecliptic (noon UTC)

  • ☉︎ Sun — 246.4° · sign Sagittarius · constellation Scorpius
  • ☽︎ Moon — 357.5° · sign Pisces · constellation Pisces
  • ☿︎ Mercury — 267.6° · sign Sagittarius · constellation Sagittarius
  • ♀︎ Venus — 236.4° · sign Scorpio · constellation Libra
  • ♂︎ Mars — 203.2° · sign Libra · constellation Virgo
  • ♃︎ Jupiter — 220.6° · sign Scorpio · constellation Libra
  • ♄︎ Saturn — 267.5° · sign Sagittarius · constellation Sagittarius
  • ☽︎ Moon 68% 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, 68% lit; the Moon was 383,115 km away.

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

    8.8 orbits of the Sun — 8,317 million km, that is 10,818 return trips to the Moon; 3,232 rotations of Earth; with the Sun — 64.2 billion km around the Galactic centre, 2.5 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 333 million km away; today it is 245 million km (closer by 1.4×).

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

    That day fell in solar cycle 24, on the decline (82% through the cycle).

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

    Mars returns to that day’s point of its orbit on April 25, 2027; Jupiter — in 2029.

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

    The vernal point has shifted 432″ 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/ap171128.html

    NASA APOD

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