Positions and motions of 250,000 stars in the Solar vicinity: stellar contents and dynamical structure of the Galaxy.

单位：美国自然历史博物馆（ei）： Sebastiaan lepino - pi: Michael SharaTITLE：太阳附近250,000颗恒星的位置和运动：星系的恒星成分和动力结构Sebastien Lepine和Michael Shara（两人都在美国自然历史博物馆工作）将利用SUPERBLINK自动巡天（SUPERBLINK proper motion survey）创建一个包含25万颗附近微弱恒星的目录，该巡天是基于数字巡天的数据挖掘。将进行精确到100秒差距的位置和速度普查。这项研究将通过识别以0.04秒/年的速度运动的恒星，并通过光度视差确定距离，从而研究银河系的结构和形成历史。同时，还将对红亚矮星视差距离进行相应的标定。这项工作将被纳入一个新的，扩大的“高自动星目录”，通过数据库的在线搜索版本向公众提供。太阳附近恒星的运动将被纳入美国自然历史博物馆/海登天文馆的数据库（数字星系），并作为天文馆沉浸式3D太空展的一部分，每年向大约100万游客展示。

AST-0607757INSTITUTION: American Museum of Natural HistoryPI: Sebastiaan LepineCo-PI: Michael SharaTITLE: Positions and motions of 250,000 stars in the Solar vicinity: stellar contents and dynamical structure of the GalaxyABSTRACTDr. Sebastien Lepine and Michael Shara (both at the American Museum of Natural History) will create a catalog of 250,000 faint nearby stars using the SUPERBLINK proper motion survey, which is based on data mining of the Digital Sky Surveys. A position and velocity census, out to 100 parsecs, will be made. This study will allow for the investigation of the structure and formation history of the Galaxy, by identifying stars with proper motions 0.04arseconds/year, and determining distances by means of photometric parallaxes. An associated calibration program for parallax distances of red subdwarfs will also be undertaken.This work will be incorporated into a new, expanded Catalog of High Proper Motion Stars" to be made available to the public by means of an on-line, searchable version of the database. The motion of the stars in the Solar neighborhood will be incorporated into the American Museum of Natural History / Hayden Planetarium database (the Digital Galaxy), and presented to roughly 1 million visitors each year as part of the Planetarium's immersive 3D Space Show.