蝎虎座（Lacertae）：这个天区，事实上星座速配。有很多相当明亮的疏散星团。
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BL Lacertae object 蝎虎天体
Using an array of 10 powerful radio telescopes, aimed at the galaxy BL Lacertae, the researchers studied a black hole just as it was sending forth a blazar jet.
BBC: Black holes reveal more secrets
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