CAJ | 학술논문

研究云南天文台昆明凤凰山和丽江高美古两地点的大气视宁度.利用云南天文台于1994年建立的3孔较差视宁度监视仪(3孔DIMM)，对这两个地点的视宁度对比观测.还利用云南天文台的1米望远镜所得到的视宁度与3孔DIMM所测的视宁度进行对比.1米望远镜和3孔DIMM同时观测了7个晚上，各取得308组数据，它们的视宁度平均分别为0.90″和0.84″.还讨论了3孔DIMM采用不同曝光时间对视宁度测量值的影响，从实验得出3孔DIMM采用20 ms曝光比采用8 ms曝光所测视宁度的值要好15％左右. 从1995年5月-1996年12月，对丽江高美古和昆明凤凰山二地进行了视宁度的对比观测.在高美古和昆明分别观测了234夜和256夜，观测结果是两个点的视宁度平均：丽江为0.70″，昆明为0.95″.同时也统计了两个点的月平均视宁度和最好夜的视宁度，并讨论了两地视宁度随时间的变化规律.
연구운남천문태곤명봉황산화려강고미고량지점적대기시저도.이용운남천문태우1994년건립적3공교차시저도감시의(3공DIMM)，대저량개지점적시저도대비관측.환이용운남천문태적1미망원경소득도적시저도여3공DIMM소측적시저도진행대비.1미망원경화3공DIMM동시관측료7개만상，각취득308조수거，타문적시저도평균분별위0.90″화0.84″.환토론료3공DIMM채용불동폭광시간대시저도측량치적영향，종실험득출3공DIMM채용20 ms폭광비채용8 ms폭광소측시저도적치요호15％좌우. 종1995년5월-1996년12월，대려강고미고화곤명봉황산이지진행료시저도적대비관측.재고미고화곤명분별관측료234야화256야，관측결과시량개점적시저도평균：려강위0.70″，곤명위0.95″.동시야통계료량개점적월평균시저도화최호야적시저도，병토론료량지시저도수시간적변화규률.
The seeings of two sites at Yunnan Observatory of Kunming and Gaomeigu Station of Lijiang are studied by using the three sub-aperture DIMM of Yunnan Observatory. The FWHMs given by 1 m telescope and the seeing measured by DIMMs are compared. In terms of the simultaneous data of seven days' observations, the average FWHMs of 1 m telescope is 1.17", while the average seeing of DIMM is 0.84". The authors tested the effect of time exposure on the measured seeing of three sub-aperture DIMM and found that the seeing of 20 ms time exposure is 15 % better than that of 8 ms time exposure. 　　From May 1995 to December 1996 the authors compared observations of two sites and obtained the data of 234 nights in Gaomeigu and of 256 nights in Yunnan observatory. The average seeings of two sites are, respectively, 0. 70" at Gaomeigu and 0.95" at Yunnan Observatory. The seeing variations with time of the two sites are also studied.