LDN 43：宇宙蝙蝠星云
(原标题: LDN 43: The Cosmic Bat Nebula)
2024-10-27
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银河系中最令人毛骨悚然的星云是什么？其中一个竞争者是LDN 43，它与黑暗的万圣节夜晚在群星间飞行的巨大宇宙蝙蝠惊人地相似。位于蛇夫座1400光年远的地方，这个分子云的密度足够大，不仅可以阻挡来自背景恒星的光线，还可以阻挡来自附近反射星云lbn7的缕缕气体。这条由气体和尘埃组成的长达12光年的长丝远不是死亡的预兆，实际上是一个恒星托儿所。蝙蝠发出怪异的光，从内部被刚刚形成年轻恒星的密集气体结照亮。你的天空惊喜：APOD在你的生日上展示了什么照片？(1995后)
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What is the most spook-tacular nebula in the galaxy? One contender is LDN 43, which bears an astonishing resemblance to a vast cosmic bat flying amongst the stars on a dark Halloween night. Located about 1400 light years away in the constellation Ophiuchus, this molecular cloud is dense enough to block light not only from background stars, but from wisps of gas lit up by the nearby reflection nebula LBN 7. Far from being a harbinger of death, this 12-light year-long filament of gas and dust is actually a stellar nursery. Glowing with eerie light, the bat is lit up from inside by dense gaseous knots that have just formed young stars. Your Sky Surprise: What picture did APOD feature on your birthday? (post 1995)
© Mark Hanson and Mike Selby; Text: Michelle Thaller (NASA's GSFC)