SHASSA FL - Continuum subtract. survey collection

The Southern H-Alpha Sky Survey Atlas is the product of a wide-angle digital imaging survey of the H-alpha emission from the warm ionized interstellar gas of our Galaxy. This...南部Hα（H-alpha）巡天天图（Southern H-Alpha Sky Survey Atlas）是针对银河系暖态电离星际气体所产生的Hα辐射开展的广角数字成像巡天项目的成果。