ORICAT Catalog of Stars in Orion Great Nebula

Six Tautenburg 2-m Schmidt telescope plates have been used to derive proper motions for 12740 stars down to Blim=18.5 in the region centered at RA=83.45grad, Dec=-5.20grad of...本研究利用6张陶滕堡（Tautenburg）2米施密特望远镜（Schmidt telescope）的照相底片，对以赤经（Right Ascension, RA）83.45°、赤纬（Declination, Dec）-5.20°为中心的天区内、暗至B波段极限星等（Blim）18.5等的12740颗恒星，测定了其自行（proper motions）。