This dark tower, NGC 6231, and associated nebulae are about 5, 000 light-years away.
这座暗黑之塔 NGC 6231 和与之相连的星云距我们大约 5000 光年远。
In silhouette against a crowded star field toward the constellation Scorpius, this dusty cosmic cloud evokes for some the image of an ominous dark tower.
在天蝎座拥挤的星野背景衬托下显出暗色轮廓，这个多尘的宇宙云的形象让人联想起某种不祥的黑塔。
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