暗Doodad星云
(原标题: The Dark Doodad Nebula)
2024-06-25
浏览次数: 14
天空上那条奇怪的棕色缎带是什么？在观测NGC 4372星团时，观测者经常注意到附近有一条不寻常的黑色条纹，长度约为3度。这条条纹，实际上是一个长长的分子云，已经被称为暗Doodad星云。（Doodad是一个东西或什么东西的俚语。）在这张照片中，暗斗状星云扫过一个丰富多彩的星场的中心。它的深色来自高浓度的星际尘埃，这些尘埃优先散射可见光。球状星团NGC 4372在最左边是模糊的白点，而明亮的蓝色恒星γ Muscae在星团的右上方。黑暗的Doodad星云可以用高强度的双筒望远镜在南天牛座（Musca）找到。
查看原文解释
What is that strange brown ribbon on the sky? When observing the star cluster NGC 4372, observers frequently take note of an unusual dark streak nearby running about three degrees in length. The streak, actually a long molecular cloud, has become known as the Dark Doodad Nebula. (Doodad is slang for a thingy or a whatchamacallit.) Pictured here, the Dark Doodad Nebula sweeps across the center of a rich and colorful starfield. Its dark color comes from a high concentration of interstellar dust that preferentially scatters visible light. The globular star cluster NGC 4372 is visible as the fuzzy white spot on the far left, while the bright blue star gamma Muscae is seen to the cluster's upper right. The Dark Doodad Nebula can be found with strong binoculars toward the southern constellation of the Fly (Musca).
© Martin Pugh & Rocco Sung