Source: JPL Horizons On-Line Ephemeris System

The traditional East Asian calendars divide a year into 24 solar terms (節氣). Chǔshǔ (pīnyīn), Shosho (rōmaji), or Cheoseo (romaja) (traditional Chinese: 處暑;simplified Chinese: 处暑;Japanese: 処暑;Korean: 처서;Vietnamese:Xử thử;literally: "limit of heat") is the 14th solar term. It begins when the Sun reaches the celestial longitude of 150° and ends when it reaches the longitude of 165°. It more often refers in particular to the day when the Sun is exactly at the celestial longitude of 150°. In the Gregorian calendar, it usually begins around 23 August and ends around 7 September.