摘要
Aresearch team led by Prof.SHANG Zhaohui from the National Astronomical Observatories of the Chinese Academy of Sciences(NAOC)has proved that Dome A in Antarctica is the best site for optical astronomical observation on Earth.The study was,published in Nature on July 29.Seeing,a factor crucial for optical astronomical observations,is subject to the atmospheric turbulence that makes stars twinkle or smears star images observed by telescopes.At an observatory with good seeing,weak turbulence results in a smaller seeing value and sharper images.