Notable people born on December 15

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People born on this day

Gustave EiffelFrench chemical engineer and architect (1832–1923)Born in 1832 · View source ↗1832

Oscar NiemeyerBrazilian architect (1907–2012)Born in 1907 · View source ↗1907

L. L. ZamenhofPolish-Jewish physician and inventor of Esperanto (1859-1917)Born in 1859 · View source ↗1859

Freeman Dysontheoretical physicist and mathematician (1923–2020)Born in 1923 · View source ↗1923

Friedensreich HundertwasserAustrian artist (1928–2000)Born in 1928 · View source ↗1928

Choose a year · 2026–2035

The Moon and calendar traditions on this date

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Calculated for 12:00 UTC on December 15, 2026

Moon phaseFirst quarterCalculated for the selected date and year. Phase names are approximate categories, not the exact instant of a new, quarter or full Moon.

Illuminated fraction33 %

Distance to the Moon398,400 kmApproximate geocentric distance, rounded to 100 km.

Chinese zodiac yearHorse · FireBased on the Chinese lunar year, which does not begin on January 1.

Western zodiacSagittariusTraditional date range; signs are not a scientific description of personality.

Catholic calendarSt. ValerianA commemorated name, not a documented date for a biblical event. Vatican News ↗

Method and calendar: Astronomy Engine · Hong Kong Observatory · Encyclopaedia Britannica

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