Thanks to:
Chinese Academy of Sciences (CAS)
National Astronomical Observatories, CAS (NAOC)
Purple Mountain Observatory, CAS (PMO)
Shanghai Astronomical Observatory, CAS (SHAO)
Yunnan Astronomical Observatory, CAS (YNAO)
National Natural Science Foundation of China (NNSFC)
The Jiayuguan is the western terminal of the Great Wall.
The Jiayuguan Castle: "Number one in the world"!
