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2.A similar dark nebula in the Northern Hemisphere near the constellation Cygnus.
黑色星云北半球接近天鹅座的一种类似黑色星云收藏指正
3.A dark nebula, one of the nearest to Earth, that appears in the southern Milky Way.
煤袋最接近地球的黑色星云之一，见于银河系南部收藏指正
4.The island-like clumps of dark clouds scattered across the nebula are nodules of dust and gas that are resisting being eaten away by photoionization.
散布在星云中孤岛样的块状冷云是正在经受光电离吞噬的气体和尘埃节。收藏指正
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