金牛座T和Hind的变星云
(原标题: T Tauri and Hind's Variable Nebula)
2022-02-10
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在这个布满灰尘的望远镜框架中，靠近顶部中心的橙色恒星是金牛座T，金牛座T变星的原型。在它旁边（右）是一个黄色的宇宙云，历史上被称为Hind变星云（NGC 1555）。大约650光年远，在当地气泡和金牛座分子云的边界，恒星和星云的亮度变化很大，但不一定是在同一时间，增加了这个迷人区域的神秘感。金牛座T星现在被普遍认为是年轻的（不到几百万年），类太阳的恒星仍处于形成的早期阶段。更复杂的是，红外观测表明金牛座T本身是一个多系统的一部分，并表明相关的Hind星云也可能包含一个非常年轻的恒星物体。这张构图良好的图像以金牛座的估计距离计算，跨度约为8光年。
查看原文解释
The star with an orange tint near top center in this dusty telescopic frame is T Tauri, prototype of the class of T Tauri variable stars. Next to it (right) is a yellow cosmic cloud historically known as Hind's Variable Nebula (NGC 1555). About 650 light-years away, at the boundary of the local bubble and the Taurus molecular cloud, both star and nebula are seen to vary significantly in brightness but not necessarily at the same time, adding to the mystery of the intriguing region. T Tauri stars are now generally recognized as young (less than a few million years old), sun-like stars still in the early stages of formation. To further complicate the picture, infrared observations indicate that T Tauri itself is part of a multiple system and suggest that the associated Hind's Nebula may also contain a very young stellar object. The well-composed image spans about 8 light-years at the estimated distance of T Tauri.
© Dawn Lowry