The sky on April 30, 2016 — as it really was
That day the Sun stood in Aries, while the horoscope says "Taurus". The gap is 24.1° of precession.
Bodies on the ecliptic (noon UTC)
- ☉︎ Sun — 40.6° · sign Taurus · constellation Aries
- ☽︎ Moon — 315.0° · sign Aquarius · constellation Aquarius
- ☿︎ Mercury — 53.5° · sign Taurus · constellation Aries
- ♀︎ Venus — 30.6° · sign Taurus · constellation Pisces
- ♂︎ Mars — 247.8° · sign Sagittarius · constellation Scorpius
- ♃︎ Jupiter — 163.4° · sign Virgo · constellation Leo
- ♄︎ Saturn — 255.4° · sign Sagittarius · constellation Ophiuchus
- ☽︎ Moon 46% 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.
- The Moon that day [EXACT]
last quarter, 46% lit; the Moon was 379,964 km away.
astronomy-engine - How far Earth has travelled since [EXACT]
10.4 orbits of the Sun — 9,802 million km, that is 12,749 return trips to the Moon; 3,809 rotations of Earth; with the Sun — 75.7 billion km around the Galactic centre, 2.9 light-days.
29.78 km/s along the orbit; 230 km/s around the Galactic centre - Mars then and now [EXACT]
On that day Mars was 87 million km away; today it is 245 million km (farther by 2.8×).
astronomy-engine; checked against JPL Horizons for 2026-09-14 - Solar cycle [ESTIMATE]
That day fell in solar cycle 24, on the decline (67% through the cycle).
SILSO smoothed minima - When the sky repeats [EXACT]
Mars returns to that day’s point of its orbit on August 13, 2027; Jupiter — in 2028; a full moon exactly on this date — April 29, 2037
sidereal periods: Mars 686.98 d, Jupiter 11.862 yr - How far the sky has drifted since [EXACT]
The vernal point has shifted 504″ since that day; the real constellations now sit 24.1° away from the astrologers’ “signs”.
precession 50.29″/yr - Picture of the day [EXACT]
NASA Astronomy Picture of the Day for this date: apod.nasa.gov/apod/ap160430.html
NASA APOD
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