February 1
February 1 is the 32nd day of the year in the Gregorian calendar; 334 days remain until the year's end. It falls in winter (northern hemisphere) and under the astrological sign of Aquarius.
Day of year
32
Days remaining
334
ISO week
5
Zodiac
Aquarius
Season
Winter
Sun declination
-17.5°
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 1 the Sun's declination is approximately -17.5°. 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 1.
Position in the year
Holidays & observances
- Imbolc / St Brigid's Day (Ireland)
- National Freedom Day (United States — Lincoln signed the 13th Amendment resolution this day in 1865)
Events
A selection of widely-documented historical events that took place on this date. Years marked BCE follow standard astronomical convention.
- 1865 — U.S. President Abraham Lincoln signed the joint resolution proposing the Thirteenth Amendment. ↗(161 years ago)
- 1884 — The first volume of the Oxford English Dictionary was published. ↗(142 years ago)
- 1960 — Four black students staged a sit-in at a Woolworth's lunch counter in Greensboro, North Carolina. ↗(66 years ago)
- 1979 — Ayatollah Ruhollah Khomeini returned to Tehran after 14 years' exile. ↗(47 years ago)
- 2003 — The Space Shuttle Columbia disintegrated on re-entry, killing all seven crew. ↗(23 years ago)
Notable births
Notable deaths
- 1976 — Werner Heisenberg, German theoretical physicist. ↗(50 years ago)
Numerical & calendrical curiosities
| Day-of-year (32) | 2^5 · composite (no) |
|---|---|
| Days remaining (334) | 2 × 167 |
| Date code DDMMYYYY | 01022026 · no palindrome in next 200 years |
| Sun declination | -17.51° (Cooper approximation) |
| Distance from solstice | 43 days |