The sky on June 13, 1998 — as it really was
That day the Sun stood in Taurus, while the horoscope says "Gemini". The gap is 23.8° of precession.
Bodies on the ecliptic (noon UTC)
- ☉︎ Sun — 82.3° · sign Gemini · constellation Taurus
- ☽︎ Moon — 302.2° · sign Aquarius · constellation Capricornus
- ☿︎ Mercury — 86.3° · sign Gemini · constellation Taurus
- ♀︎ Venus — 47.0° · sign Taurus · constellation Aries
- ♂︎ Mars — 74.3° · sign Gemini · constellation Taurus
- ♃︎ Jupiter — 356.2° · sign Pisces · constellation Pisces
- ♄︎ Saturn — 30.4° · sign Taurus · constellation Pisces
- ☽︎ Moon 88% 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 gibbous, 88% lit; the Moon was 382,466 km away.
astronomy-engine - How far Earth has travelled since [EXACT]
28.3 orbits of the Sun — 26,605 million km, that is 34,606 return trips to the Moon; 10,340 rotations of Earth; with the Sun — 205.5 billion km around the Galactic centre, 7.9 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 377 million km away; today it is 245 million km (closer by 1.5×).
astronomy-engine; checked against JPL Horizons for 2026-09-14 - Solar cycle [ESTIMATE]
That day fell in solar cycle 23, right at the minimum (15% through the cycle).
SILSO smoothed minima - When the sky repeats [EXACT]
Mars returns to that day’s point of its orbit on July 17, 2028; Jupiter — in 2034; a full moon exactly on this date — June 12, 2033
sidereal periods: Mars 686.98 d, Jupiter 11.862 yr - How far the sky has drifted since [EXACT]
The vernal point has shifted 1,404″ since that day; the real constellations now sit 23.8° 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/ap980613.html
NASA APOD
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