Xuntian (Chinese: 巡天; pinyin: Xún Tiān; lit. 'Heavenly Cruiser', also known as the Chinese Space Station Telescope or CSST) is a planned Chinese space telescope currently under development. It will feature a 2 meter (6.6 foot) diameter primary mirror and is expected to have a field of view 300 times larger than the Hubble Space Telescope. This will allow the telescope to image up to 40 percent of the sky using its 2.5 gigapixel camera over ten years. Xuntian is planned for launch in 2024 to co-orbit with the Chinese space station, which will allow for periodic docking with the station.