美国国家航空航天局NASA每日一图(天文)-2017年7月8日

2017 July 8

Hidden Galaxy IC 342
Credit & Copyright: T. Rector (U. Alaska Anchorage), H. Schweiker, WIYN, NOAO, AURA, NSF
Explanation: Similar in size to large, bright spiral galaxies in our neighborhood, IC 342 is a mere 10 million light-years distant in the long-necked, northern constellation Camelopardalis. A sprawling island universe, IC 342 would otherwise be a prominent galaxy in our night sky, but it is hidden from clear view and only glimpsed through the veil of stars, gas and dust clouds along the plane of our own Milky Way galaxy. Even though IC 342's light is dimmed by intervening cosmic clouds, this sharp telescopic image traces the galaxy's own obscuring dust, blue star clusters, and glowing pink star forming regions along spiral arms that wind far from the galaxy's core. IC 342 may have undergone a recent burst of star formation activity and is close enough to have gravitationally influenced the evolution of the local group of galaxies and the Milky Way.

2017年7月8日

隐藏的银河IC 342的信用和版权:校长(美国)阿拉斯加安克雷奇),H。施韦克,口径WIYN望远镜,诺奥岛,的光环,NSF

解释:类似规模大,我们附近明亮的螺旋星系,IC342是仅仅一千万光年远的长颈,IC342和北部。一个庞大的宇宙岛,IC342,否则会突出我们的夜晚天空的星系,但它是隐藏的,视野清晰,只有透过面纱的恒星,气体和尘埃云沿着我们银河系的平面。尽管IC342是通过干预宇宙光线变暗的云,这幅高清望远镜图像的星系自身的尘埃痕迹,蓝色星团和发光的粉红色的恒星形成区风远的旋臂从星系核心。IC 342可能经历了最近的恒星形成活动的爆发,并接近于引力影响了星系和银河系的演化。

评论已关闭