February 11
February 11 is the 42nd day of the year in the Gregorian calendar; 324 days remain until the year's end. It falls in winter (northern hemisphere) and under the astrological sign of Aquarius.
Day of year
42
Days remaining
324
ISO week
6
Zodiac
Aquarius
Season
Winter
Sun declination
-14.6°
External references
Curated jump-off points to the major almanacs, encyclopaedias and primary sources for this date.
Wikipedia: this day →Britannica: this day →LoC: Today in History →History.com: this day →On-This-Day.com →BBC: On This Day →NYT: this day →Time and Date →NASA APOD archive →U.S. Naval Observatory →Wolfram|Alpha →Wikidata →Google Books →JSTOR →Internet Archive →
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Astronomy
Computed via Cooper's formula. Positive declination = Sun north of the celestial equator (Northern Hemisphere summer).
On February 11 the Sun's declination is approximately -14.6°. At this latitude the Sun is south of the celestial equator, giving the Northern Hemisphere shorter days than nights.
For specific rise/set times at your location, see the U.S. Naval Observatory, or the NASA APOD archive for any imagery published on a February 11.
Position in the year
Holidays & observances
- National Foundation Day (Japan)
- International Day of Women and Girls in Science (UN)
Events
A selection of widely-documented historical events that took place on this date. Years marked BCE follow standard astronomical convention.
- 660 — Traditional date of the founding of Japan by Emperor Jimmu. ↗(1366 years ago)
- 1929 — The Lateran Treaty was signed, creating Vatican City as an independent state. ↗(97 years ago)
- 1990 — Nelson Mandela was released after 27 years in South African prison. ↗(36 years ago)
- 2011 — Egyptian President Hosni Mubarak resigned after weeks of protests during the Arab Spring. ↗(15 years ago)
Notable births
Notable deaths
- 1650 — René Descartes, French philosopher and mathematician. ↗(376 years ago)
Numerical & calendrical curiosities
| Day-of-year (42) | 2 × 3 × 7 · composite (no) |
|---|---|
| Days remaining (324) | 2^2 × 3^4 |
| Date code DDMMYYYY | 11022026 · no palindrome in next 200 years |
| Sun declination | -14.58° (Cooper approximation) |
| Distance from solstice | 53 days |