Dashu (solar term)
The traditional Chinese calendar divides a year into 24 solar terms.[1] Dàshǔ (大暑), Taisho, Daeseo, or Đại thử (Chinese and Japanese: 大暑; pinyin: dàshǔ; rōmaji: taisho; Korean: 대서; romaja: daeseo; Vietnamese: đại thử; "major heat") is the 12th solar term. It begins when the Sun reaches the celestial longitude of 120° and ends when it reaches the longitude of 135°. It more often refers in particular to the day when the Sun is exactly at the celestial longitude of 120°. In the Gregorian calendar, it usually begins around 22 July (23 July Chinese lunisolar calendar time) and ends around 7 August.
| Dashu | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chinese name | |||||||||||||||
| Chinese | 大暑 | ||||||||||||||
| Literal meaning | major heat | ||||||||||||||
| |||||||||||||||
| Vietnamese name | |||||||||||||||
| Vietnamese alphabet | đại thử | ||||||||||||||
| Chữ Hán | 大暑 | ||||||||||||||
| Korean name | |||||||||||||||
| Hangul | 대서 | ||||||||||||||
| Hanja | 大暑 | ||||||||||||||
| |||||||||||||||
| Japanese name | |||||||||||||||
| Kanji | 大暑 | ||||||||||||||
| Hiragana | たいしょ | ||||||||||||||
| |||||||||||||||
| Term | Longitude | Dates |
|---|---|---|
| Lichun | 315° | 4–5 February |
| Yushui | 330° | 18–19 February |
| Jingzhe | 345° | 5–6 March |
| Chunfen | 0° | 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 |
Date and time
| year | begin | end |
|---|---|---|
| 辛巳 | 2001-07-22 18:26 | 2001-08-07 10:52 |
| 壬午 | 2002-07-23 00:14 | 2002-08-07 16:39 |
| 癸未 | 2003-07-23 06:04 | 2003-08-07 22:24 |
| 甲申 | 2004-07-22 11:50 | 2004-08-07 04:19 |
| 乙酉 | 2005-07-22 17:40 | 2005-08-07 10:03 |
| 丙戌 | 2006-07-22 23:17 | 2006-08-07 15:40 |
| 丁亥 | 2007-07-23 05:00 | 2007-08-07 21:31 |
| 戊子 | 2008-07-22 10:54 | 2008-08-07 03:16 |
| 己丑 | 2009-07-22 16:35 | 2009-08-07 09:01 |
| 庚寅 | 2010-07-22 22:21 | 2010-08-07 14:49 |
| 辛卯 | 2011-07-23 04:11 | 2011-08-07 20:33 |
| 壬辰 | 2012-07-22 10:00 | 2012-08-07 02:30 |
| 癸巳 | 2013-07-22 15:56 | 2013-08-07 08:20 |
| 甲午 | 2014-07-22 21:41 | 2014-08-07 14:02 |
| 乙未 | 2015-07-23 03:28 | 2015-08-07 20:02 |
| 丙申 | 2016-07-22 09:28 | 2016-08-07 01:51 |
| 丁酉 | 2017-07-22 15:16 | 2017-08-07 07:37 |
| 戊戌 | 2018-07-22 21:01 | 2018-08-07 13:30 |
| 己亥 | 2019-07-23 02:48 | 2019-08-07 19:14 |
| 庚子 | 2020-07-22 08:34 | 2020-08-07 01:04 |
| 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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