ivo://x-unregistred/__system__/services/rootKapteyn InstituteSten Sipmahttp://vo.astro.rug.nl/favicon.png2026-01-23T12:48:32ZSten Sipmasipma@astro.rug.nlvirtual-observatoriesThe Blaauw Archive aims to make observations taken by the Blaauw Observatory more accessible by aggregating all header information in queryable tables.http://vo.astro.rug.nl/__system__/services/root/info