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 meaning | frost descent | ||||||||||||||
| |||||||||||||||
| Vietnamese name | |||||||||||||||
| Vietnamese alphabet | sương giáng | ||||||||||||||
| Chữ Hán | 霜降 | ||||||||||||||
| Korean name | |||||||||||||||
| Hangul | 상강 | ||||||||||||||
| Hanja | 霜降 | ||||||||||||||
| |||||||||||||||
| Japanese name | |||||||||||||||
| Kanji | 霜降 | ||||||||||||||
| Hiragana | そうこう | ||||||||||||||
| |||||||||||||||
| Longitude | Term | Calendar |
|---|---|---|
| Spring | ||
| 315° | Lichun | 4 – 5 February |
| 330° | Yushui | 18–19 February |
| 345° | Jingzhe | 5 – 6 March |
| 0° | Chunfen | 20–21 March |
| 15° | Qingming | 4 – 5 April |
| 30° | Guyu | 20–21 April |
| Summer | ||
| 45° | Lixia | 5 – 6 May |
| 60° | Xiaoman | 21–22 May |
| 75° | Mangzhong | 5 – 6 June |
| 90° | Xiazhi | 21–22 June |
| 105° | Xiaoshu | 7 – 8 July |
| 120° | Dashu | 22–23 July |
| Autumn | ||
| 135° | Liqiu | 7 – 8 August |
| 150° | Chushu | 23–24 August |
| 165° | Bailu | 7 – 8 September |
| 180° | Qiufen | 23–24 September |
| 195° | Hanlu | 8 – 9 October |
| 210° | Shuangjiang | 23–24 October |
| Winter | ||
| 225° | Lidong | 7 – 8 November |
| 240° | Xiaoxue | 22–23 November |
| 255° | Daxue | 7 – 8 December |
| 270° | Dongzhi | 21–22 December |
| 285° | Xiaohan | 5 – 6 January |
| 300° | Dahan | 20–21 January |
Pentads
Date and time
| year | begin | end |
|---|---|---|
| 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
- 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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