Astrometric Research at Yale University Observatory

有了这个和耶鲁南方天文台的配套资助， Inc.货车阿尔特纳博士将继续测量和分析 在拍摄南半球自行的底片上， (SPM)耶鲁南方天文台的一个项目， Argentina. 的位置和绝对自行 每个视场大约有1000颗恒星， 暗淡的星系。 一个新的微弱星星耶鲁带星表 将启动坐标，这将提供一个网络， 二级标准下的18级 主要使用 是为了研究星系结构， 而耶鲁区域目录将提供模糊的使用标准， 在确定非常小的区域中物体的坐标时 大型反射镜望远镜。

With this and a companion grant to the Yale Southern Observatory, Inc. Dr. Van Altena will continue with the measurement and analysis of the photographic plates obtained for the Southern Proper Motion (SPM) program at the Yale Southern Observatory at El Leoncito, Argentina. The positions and absolute proper motions of approximately 1000 stars per field will be measured with respect to faint galaxies. A new Yale Zone Catalog of faint star coordinates will be initiated which will provide a network of secondary standards down to the 18th magnitude. The primary use of the SPM proper motions is for research on galactic structure, while the Yale Zone Catalog will provide faint standards for use in determining the coordinates of objects in the very small fields of large reflector telescopes.