On September 17, the University of Science and Technology of China-Purple Mountain Observatory Large Field Survey Telescope (Jimozi Survey Telescope) was officially launched and successfully released its first light image - the Andromeda Galaxy image, marking that after about a month of equipment operation testing , the telescope equipment has basically reached the design standards and can already carry out astronomical observation research.

The Andromeda Galaxy M31 is about 2.5 million light-years away from Earth and has a diameter of about 200,000 light-years. This photo is a superposition of 150 photos obtained by the Micius Survey Telescope through a total of 150 exposures of 30 seconds each. Chinese Academy of Sciences map

The Andromeda Galaxy is the closest and largest spiral galaxy to the Milky Way. Its structural characteristics and metallicity are similar to those of the Milky Way. It is an ideal research object for exploring the formation and evolution of the Milky Way and similar galaxies. Due to the large span of the Andromeda Galaxy in the sky, it is time-consuming and laborious to observe the Andromeda Galaxy with existing astronomical telescopes, making it difficult to capture an accurate panorama of the Andromeda Galaxy and its surrounding environment at the same time.

The Andromeda Galaxy M31 is about 2.5 million light-years away from Earth and has a diameter of about 200,000 light-years. This photo is a superposition of 150 photos obtained by the Micius Survey Telescope through a total of 150 exposures of 30 seconds each. This is also the largest high-resolution image of the Andromeda Galaxy with the largest field of view in the world.

The Mozi Survey Telescope is located at the Seshteng Mountain Observatory at an altitude of 4,200 meters in Lenghu Town, Mangya City, Haixi Prefecture, Qinghai Province. It is the first large-scale equipment to be put into operation at the Lenghu Astronomical Observation Base and conduct astronomical observation and research.

Mozi Sky Survey Telescope. Chinese Academy of Sciences map

According to reports, the Mozi Survey Telescope is a "double first-class" discipline platform construction project of the University of Science and Technology of China. It is a joint research and development project launched by the University of Science and Technology of China, the Purple Mountain Observatory of the Chinese Academy of Sciences, and the Deep Space Exploration Laboratory on March 1, 2018. Field of view optical imaging telescope. In July 2019, the construction of the telescope officially started. In October 2022, the Deep Space Exploration Laboratory began to participate in the construction of the telescope. In August 2023, the telescope was completed and debugged and observed.

Mozi Sky Survey Telescope. Chinese Academy of Sciences map

The Micius Survey Telescope has a diameter of 2.5 meters. It adopts internationally advanced main focus optical system design and main mirror active optical correction technology to achieve uniform high image quality and extremely low field distortion imaging within a 3-degree field of view. It is equipped with a 765 million pixel large The target main focus camera has the characteristics of large field of view, high image quality, and wide waveband. The Micius Survey Telescope has a large light area, less stray light, high system detection sensitivity, and powerful sky survey capabilities. It can survey the entire northern celestial sphere every three nights, making it the equipment with the strongest optical time-domain sky survey capabilities in the northern hemisphere.

The completion of the Mozi Survey Telescope has significantly improved my country's time-domain astronomical research capabilities and brought our country's time-domain astronomical observation capabilities to the internationally advanced level.