Optical Observation Environment of Jilin Astronomical Observatory
Ground-based optical astronomical telescopes are one of the most important instruments for human exploration and research of the universe.Monitoring and analysis of the optical observation envi-ronment of the existing ground-based optical station can provide a reference for the targeted modification of equipment and the adjustment of observation strategies of observers,which is of great significance for improving the observation efficiency of ground-based optical equipment.Jilin Astronomical Observatory(hereinafter referred to as the"Base")is located about 5 kilometers(126.3° E,43.8° N,313 meters above sea level)in Nangou,Xiaosuihe Village,Dasuihe Town,Jilin City,Jilin Province,which is affiliated to the Changchun Observatory,National Astronomical Observatories,Chinese Academy of Sciences.The mean value of seeing of the base is about 1.3″-1.4″,the night sky brightness in the V band near the zenith is 20.64 mag·arcsec-2,and the maximum number of clear nights is better than 270 days per year,which shows the good astronomical observation conditions.Jilin Astronomical Observatory,which was put into operation in 2016,has several photoelectric telescopes,including the 1.2-meter photoelectric telescope,the Mini Optoelectronic Telescope Array,the large field of view photoelectric telescope array,and the ad-vanced multi-functional array-structured photoelectric detector.With the equipments mentioned above,we have carried out relevant research mainly on space target detection and recognition,precision orbit determination,new photoelectric detection methods and multicolor photometry of variables,and so forth.We have maintained a good cooperative relationship with a number of domestic universities and scientific research institutes.
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