N a type of nebula that is observed by its blocking of radiation from other sources 暗星云 →see nebula
L the Horsehead nebula in Orion is the best-known dark nebula.
l猎户星座中的马头星云是最著名的暗星云。
Also called 30 Doradus, the red and pink gas indicates a massive emission nebula, although supernova remnants and dark nebula also exist there.
也被称为剑鱼座30，红色和粉色气体标示一个大质量发射星云，尽管这儿也存在着超新星遗迹和暗星云。
Starting on the left, look for the Lagoon and Trifid nebulae, the Cat's Paw, the Pipe dark nebula, and the colorful clouds of Rho Ophiuchi and Antares (right).
从影像左方开始往右，分别可以找到潟湖星云、三裂星云、猫掌星云、烟斗星云以及色彩缤纷的心宿增四星和心宿二。
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