Criteria for target selectionclusterwithwelldeterminedparameters@clusterwithS-Scutimembers;clusterswithpopulatedRGBclusterswithpopulatedHB(RCG)richnessin binariesnumberofmemberstars;cdensity of memberstarsin cluster core(fortransit)aetc
Criteria for target selection cluster with well determined parameters; cluster with -Scuti members; clusters with populated RGB; clusters with populated HB (RCG); richness in binaries; number of member stars; density of member stars in cluster core (for transit); etc
大气视宁度测量的两种方法TurbulentLayerDIMM:ShiftVt望远镜口径较小；不受跟踪误差影响；Propagation测量结果有效性高；SeeingSBIG视宁度仪：Turbulencemodel以北极星为自标星，无需跟踪：拖影，CCD单行向下读出Variance仪器小巧，自动化程度高；CCD可实现长期连续监测取得大量视宁度资料；signal-实测表明：易受风力影响：SONG&mini-SONG
SONG & mini-SONG 大气视宁度测量的两种方法 ❖ DIMM： 望远镜口径较小； 不受跟踪误差影响； 测量结果有效性高； ❖ SBIG视宁度仪： 以北极星为目标星，无需跟踪； 拖影，CCD单行向下读出； 仪器小巧，自动化程度高； 可实现长期连续监测，取得大量视 宁度资料； 实测表明：易受风力影响；