The sky on April 30, 2008 — as it really was
That day the Sun stood in Aries, while the horoscope says "Taurus". The gap is 24.0° of precession.
Bodies on the ecliptic (noon UTC)
- ☉︎ Sun — 40.5° · sign Taurus · constellation Aries
- ☽︎ Moon — 333.2° · sign Pisces · constellation Aquarius
- ☿︎ Mercury — 55.8° · sign Taurus · constellation Taurus
- ♀︎ Venus — 29.9° · sign Aries · constellation Pisces
- ♂︎ Mars — 115.1° · sign Cancer · constellation Gemini
- ♃︎ Jupiter — 292.2° · sign Capricorn · constellation Sagittarius
- ♄︎ Saturn — 151.7° · sign Virgo · constellation Leo
- ☽︎ Moon 31% 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]
waning crescent, 31% lit; the Moon was 381,433 km away.
astronomy-engine - How far Earth has travelled since [EXACT]
18.4 orbits of the Sun — 17,322 million km, that is 22,531 return trips to the Moon; 6,732 rotations of Earth; with the Sun — 133.8 billion km around the Galactic centre, 5.2 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 242 million km away; today it is 244 million km (farther by 1×).
astronomy-engine; checked against JPL Horizons for 2026-09-14 - Solar cycle [ESTIMATE]
That day fell in solar cycle 23, on the decline (95% through the cycle).
SILSO smoothed minima - When the sky repeats [EXACT]
Mars returns to that day’s point of its orbit on February 20, 2027; Jupiter — in 2032; 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 900″ since that day; the real constellations now sit 24° 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/ap080430.html
NASA APOD
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