VizieR

VizieR是一个天文目录数据库，提供了最完整的已发表天文目录库，包括表格和相关数据，数据经过验证和丰富。用户可以通过多种接口访问，并使用查询工具选择相关数据表，提取和格式化符合特定条件的记录。目前该数据库包含25839个目录，支持自由文本搜索、位置搜索和测光数据查询等功能。

VizieR is an astronomical catalog database that provides the most comprehensive collection of published astronomical catalogs, including tables and associated data, with all data verified and enriched. Users can access it via multiple interfaces, use query tools to select relevant data tables, extract records that meet specific criteria, and format the extracted results. Currently, this database contains 25,839 catalogs, and supports functions such as free-text search, positional search, photometric data query and other related capabilities.