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January 13

Day 13 of 366 · ISO week 2 · Capricorn · Winter (Northern Hemisphere)

January 13 is the 13th day of the year in the Gregorian calendar; 353 days remain until the year's end. It falls in winter (northern hemisphere) and under the astrological sign of Capricorn.

Day of year
13
Days remaining
353
ISO week
2
Zodiac
Capricorn
Season
Winter
Sun declination
-21.6°

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

Solar declination through the year — the Sun's apparent latitude on Earth. January 13 ≈ -21.6°
0° +23° −23° -21.6°
Computed via Cooper's formula. Positive declination = Sun north of the celestial equator (Northern Hemisphere summer).

On January 13 the Sun's declination is approximately -21.6°. 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 January 13.

Position in the year

Position in the calendar year — day 13 of 366 (with 353 remaining)
JanFebMarAprMayJunJulAugSepOctNovDec Jan 13

Holidays & observances

No widely-observed holidays catalogued for this day in our base set. See the external almanacs above for region-specific observances.

Events

A selection of widely-documented historical events that took place on this date. Years marked BCE follow standard astronomical convention.

Notable births

Notable deaths

Numerical & calendrical curiosities

Day-of-year (13)13 · prime
Days remaining (353)353
Date code DDMMYYYY13012026 · no palindrome in next 200 years
Sun declination-21.59° (Cooper approximation)
Distance from solstice24 days

Cross-references

The 13th of every other month

February 13March 13April 13May 13June 13July 13August 13September 13October 13November 13December 13

Adjacent days

← January 12January 14 →

Days nearby

-30 days · December 14-7 days · January 6+7 days · January 20+30 days · February 12

Themes: jaccusecosta-concordia

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