Shuangjiang (solar term)

The traditional Chinese calendar divides a year into 24 solar terms (节气/節氣).[1] Shuāngjiàng, Sōkō, Sanggang, or Sương giáng (Chinese and Japanese: 霜降; pinyin: shuāngjiàng; rōmaji: sōkō; Korean: 상강; romaja: sanggang; Vietnamese: sương giáng; "frost descent") is the 18th solar term. It begins when the Sun reaches the celestial longitude of 210° and ends when it reaches the longitude of 225°. It more often refers in particular to the day when the Sun is exactly at the celestial longitude of 210°. In the Gregorian calendar, it usually begins around October 23 and ends around November 7.

Shuangjiang
Chinese name
Chinese霜降
Literal meaningfrost descent
Vietnamese name
Vietnamese alphabetsương giáng
Chữ Hán霜降
Korean name
Hangul상강
Hanja霜降
Japanese name
Kanji霜降
Hiraganaそうこう
Solar term
Term Longitude Dates
Lichun 315°4–5 February
Yushui 330°18–19 February
Jingzhe 345°5–6 March
Chunfen 20–21 March
Qingming 15°4–5 April
Guyu 30°20–21 April
Lixia 45°5–6 May
Xiaoman 60°21–22 May
Mangzhong 75°5–6 June
Xiazhi 90°21–22 June
Xiaoshu 105°7–8 July
Dashu 120°22–23 July
Liqiu 135°7–8 August
Chushu 150°23–24 August
Bailu 165°7–8 September
Qiufen 180°23–24 September
Hanlu 195°8–9 October
Shuangjiang 210°23–24 October
Lidong 225°7–8 November
Xiaoxue 240°22–23 November
Daxue 255°7–8 December
Dongzhi 270°21–22 December
Xiaohan 285°5–6 January
Dahan 300°20–21 January

The western holiday of Halloween occurs in this solar term.

Pentads

  • 豺乃祭獸, 'Dholes make offerings of the beasts'
  • 草木黃落, 'The plants yellow and shed leaves'
  • 蟄蟲咸俯, 'All insects go dormant'

Date and time

Date and Time (UTC)
yearbeginend
辛巳 2001-10-23 08:25 2001-11-07 08:36
壬午 2002-10-23 14:17 2002-11-07 14:21
癸未 2003-10-23 20:08 2003-11-07 20:13
甲申 2004-10-23 01:48 2004-11-07 01:58
乙酉 2005-10-23 07:42 2005-11-07 07:42
丙戌 2006-10-23 13:26 2006-11-07 13:34
丁亥 2007-10-23 19:15 2007-11-07 19:24
戊子 2008-10-23 01:08 2008-11-07 01:10
己丑 2009-10-23 06:43 2009-11-07 06:56
庚寅 2010-10-23 12:35 2010-11-07 12:42
辛卯 2011-10-23 18:30 2011-11-07 18:34
壬辰 2012-10-23 00:13 2012-11-07 00:25
癸巳 2013-10-23 06:09 2013-11-07 06:13
甲午 2014-10-23 11:57 2014-11-07 12:06
乙未 2015-10-23 17:47 2015-11-07 18:00
丙申 2016-10-22 23:44 2016-11-06 23:47
丁酉 2017-10-23 05:23 2017-11-07 05:34
戊戌 2018-10-23 11:21 2018-11-07 11:30
己亥 2019-10-23 17:20 2019-11-07 17:25
庚子 2020-10-22 22:59 2020-11-06 23:13
Source: JPL Horizons On-Line Ephemeris System

References

  1. Zhang, Peiyu; Hunag, Hongfeng (1994). "The Twenty-four Solar Terms of the Chinese Calendar and the Calculation for Them". Purple Mountain Observatory.
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