The traditional
Chinese calendar
The traditional Chinese calendar, dating back to the Han dynasty, is a lunisolar calendar that blends solar, lunar, and other cycles for social and agricultural purposes. While modern China primarily uses the Gregorian calendar for officia ...
divides a year into 24
solar term
A solar term (or ''jiéqì'', zh, t=節氣, s=节气) is any of twenty-four periods in traditional Chinese lunisolar calendars that matches a particular astronomical event or signifies some natural phenomenon. The points are spaced 15° apart ...
s.
''Lìqiū'', ''Risshū'', ''Ipchu'', or ''Lập thu'' () is the 13th solar term. It begins when the Sun reaches the
celestial longitude
In astronomy, coordinate systems are used for specifying positions of celestial objects (satellites, planets, stars, galaxies, etc.) relative to a given reference frame, based on physical reference points available to a situated observer (e.g. ...
of 135° and ends when it reaches the longitude of 150°. It more often refers in particular to the day when the Sun is exactly at the celestial longitude of 135°. In the
Gregorian calendar
The Gregorian calendar is the calendar used in most parts of the world. It went into effect in October 1582 following the papal bull issued by Pope Gregory XIII, which introduced it as a modification of, and replacement for, the Julian cale ...
, it usually begins around August 7 and ends around August 23.
Liqiu signifies the beginning of autumn in East Asian cultures.
Date and time
See also
*
Lughnasadh
Lughnasadh, Lughnasa or Lúnasa ( , ) is a Gaels, Gaelic festival marking the beginning of the harvest season. Historically, it was widely observed throughout Ireland, Scotland, and the Isle of Man. Traditionally, it is held on 1 August, or abo ...
References
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Autumn
13