Digitized First Byurakan Survey

The First Byurakan Survey (FBS) is the largest and the first systematic objective prism survey of the extragalactic sky. It covers 17,000 sq.deg. in the Northern sky together...第一届比乌鲁坎巡天（First Byurakan Survey, FBS）是河外天区领域首个且目前规模最大的系统性物端棱镜巡天项目，该项目覆盖北天区共计17000平方度的天区……