NGC 1333：英仙座的恒星托儿所
(原标题: NGC 1333: Stellar Nursery in Perseus)
2021-11-11
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在可见光下，NGC 1333是一个反射星云，主要是由星际尘埃反射的星光所特有的蓝色色调。它距离英仙座只有1000光年，位于一个巨大的、正在形成恒星的分子云的边缘。这张望远镜拍摄的特写照片横跨了天空中大约两个满月的距离，也就是NGC 1333的估计距离刚刚超过15光年。它展示了尘埃区域的细节，以及赫比格-哈罗天体发出的对比红色辐射的线索，以及最近形成的恒星发出的喷射和受冲击的发光气体。事实上，NGC 1333包含了数百颗年龄不到100万年的恒星，其中大多数仍然被无处不在的星尘所掩盖，无法通过光学望远镜观测到。这种混乱的环境可能类似于45亿年前我们的太阳形成时的环境。
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NGC 1333 is seen in visible light as a reflection nebula, dominated by bluish hues characteristic of starlight reflected by interstellar dust. A mere 1,000 light-years distant toward the heroic constellation Perseus, it lies at the edge of a large, star-forming molecular cloud. This telescopic close-up spans about two full moons on the sky or just over 15 light-years at the estimated distance of NGC 1333. It shows details of the dusty region along with telltale hints of contrasty red emission from Herbig-Haro objects, jets and shocked glowing gas emanating from recently formed stars. In fact, NGC 1333 contains hundreds of stars less than a million years old, most still hidden from optical telescopes by the pervasive stardust. The chaotic environment may be similar to one in which our own Sun formed over 4.5 billion years ago.
© Michael Sherick