仙后座的援助之手

仙后座的援助之手

Helping Hand in Cassiopeia
Image Credit & Copyright: Francesco Radici

Explanation: Drifting near the plane of our Milky Way galaxy these dusty molecular clouds seem to extend a helping hand on a cosmic scale. Part of a local complex of star-forming interstellar clouds they include LDN 1358, 1357, and 1355 from American astronomer Beverly Lynds’ 1962 Catalog of Dark Nebulae. Presenting a challenging target for astro-imagers, the obscuring dark nebulae are nearly 3,000 light-years away, toward rich starfields in the northern constellation Cassiopeia. At that distance, this deep, telescopic field of view would span about 80 light-years.

Tomorrow’s picture: light-weekend

仙后座的援助之手
影像提供与版权: Francesco Radici

说明: 漂浮在我们银河系盘面附近的这些尘埃分子云，似乎形成了一只宇宙尺码的援助之手。它们是不断诞生恒星的邻近星际云复合体的一部分，成员包括美国天文学家林兹（Beverly Lynds）于1962年所编辑的《暗星云目录》里头的LDN 1358、1357和1355。这些距离约3000光年、位于北天仙后座富星场方向的不透光暗星云，对天文摄影者来说是极具挑战性的标的。依这个距离来换算，这片深空望远镜视野的跨幅约为80光年。

明日的图片: light-weekend

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