ngc4372和暗斗星
(原标题: NGC 4372 and the Dark Doodad)
2023-03-30
浏览次数: 20
令人愉悦的暗朵达德星云飘过南方的天空，这是双筒望远镜对蝇座的一个诱人的目标。在煤袋星云和南十字星的南部，我们可以看到这片布满尘埃的宇宙云。在这张远摄视野的中心延伸了大约3度，暗Doodad在其南端（右上）被黄色球状星团NGC 4372打断。当然，NGC 4372漫游在我们银河系的光晕中，这是一个距离我们大约2万光年远的背景天体，只是偶然沿着我们的视线到达了黑暗的Doodad。黑暗Doodad清晰的轮廓属于Musca分子云，但它更广为人知的头韵名字是1986年由天文成像学家和作家丹尼斯·迪·西科在澳大利亚内陆观测哈雷彗星时首次创造的。暗斗星距离我们大约700光年，长度超过30光年。
查看原文解释
The delightful Dark Doodad Nebula drifts through southern skies, a tantalizing target for binoculars toward the small constellation Musca, The Fly. The dusty cosmic cloud is seen against rich starfields just south of the Coalsack Nebula and the Southern Cross. Stretching for about 3 degrees across the center of this telephoto field of view, the Dark Doodad is punctuated near its southern tip (upper right) by yellowish globular star cluster NGC 4372. Of course NGC 4372 roams the halo of our Milky Way Galaxy, a background object some 20,000 light-years away and only by chance along our line-of-sight to the Dark Doodad. The Dark Doodad's well defined silhouette belongs to the Musca molecular cloud, but its better known alliterative moniker was first coined by astro-imager and writer Dennis di Cicco in 1986 while observing Comet Halley from the Australian outback. The Dark Doodad is around 700 light-years distant and over 30 light-years long.
© Matias Tomasello