星空有约｜我国两台先进望远镜在青海冷湖开建

Core Points - The Chinese Academy of Sciences' Zijinshan Observatory has initiated the construction of a 4.2-meter ground-based dedicated celestial measurement telescope and a 2.5-meter multi-terminal universal telescope, marking a significant advancement in China's precision astronomical observation capabilities [2][4][6] - The 4.2-meter telescope, set to be completed by 2027, will be the largest celestial measurement telescope in China, focusing on high-precision measurements of weak celestial bodies within the solar system [2][4] - The 2.5-meter telescope, expected to be completed by 2026, will be the largest coaxial laser ranging telescope in China, designed for multi-band and multi-type precision measurements of both natural and artificial celestial bodies [4][6] Telescope Specifications - The 4.2-meter telescope features a large aperture, low distortion imaging, high precision positioning, and deep detection limits, aimed at supporting the autonomous construction and long-term maintenance of China's solar system celestial catalog [2][4] - The 2.5-meter telescope is characterized by its medium aperture and multi-functional capabilities, catering to various observational needs and focusing on nearby targets and fast-moving celestial bodies [4][6] Research and Development Impact - The construction of these telescopes will significantly enhance China's capabilities in astronomical observation and space applications, providing foundational support for astronomical research and helping the country gain a technological edge in international basic astronomy and high-precision solar system observations [8]