Pic-du-Midi Coronagraph

The Pic du Midi Coronograph provides H-alpha images of the solar corona and is operated daily by amateur astronomers. The instrument consists of a refractor of diameter 150mm, a narrow-band H-alpha filter and an occulting disk.皮克·德·米迪冠谱仪提供太阳日冕的H-α图像，该仪器由业余天文学家每日操作。该装置由直径为150毫米的折射望远镜、窄带H-α滤光器和一遮挡盘组成。