The sky on February 13, 1978 — as it really was
That day the Sun stood in Capricornus, while the horoscope says "Aquarius". The gap is 23.6° of precession.
Bodies on the ecliptic (noon UTC)
- ☉︎ Sun — 324.4° · sign Aquarius · constellation Capricornus
- ☽︎ Moon — 38.4° · sign Taurus · constellation Aries
- ☿︎ Mercury — 314.1° · sign Aquarius · constellation Capricornus
- ♀︎ Venus — 329.8° · sign Aquarius · constellation Aquarius
- ♂︎ Mars — 114.1° · sign Cancer · constellation Gemini
- ♃︎ Jupiter — 86.1° · sign Gemini · constellation Taurus
- ♄︎ Saturn — 147.3° · sign Leo · constellation Leo
- ☽︎ Moon 36% 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]
first quarter, 36% lit; the Moon was 394,138 km away.
astronomy-engine - How far Earth has travelled since [EXACT]
48.6 orbits of the Sun — 45,709 million km, that is 59,456 return trips to the Moon; 17,765 rotations of Earth; with the Sun — 353 billion km around the Galactic centre, 13.6 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 108 million km away; today it is 245 million km (farther by 2.3×).
astronomy-engine; checked against JPL Horizons for 2026-09-14 - Solar cycle [ESTIMATE]
That day fell in solar cycle 21, right at the minimum (19% through the cycle).
SILSO smoothed minima - When the sky repeats [EXACT]
Mars returns to that day’s point of its orbit on January 8, 2027; Jupiter — in 2037; a full moon exactly on this date — February 13, 2044
sidereal periods: Mars 686.98 d, Jupiter 11.862 yr - How far the sky has drifted since [EXACT]
The vernal point has shifted 2,448″ since that day; the real constellations now sit 23.6° away from the astrologers’ “signs”.
precession 50.29″/yr
Other dates
Computed from the date only; nothing about you is stored.