M16: Eagle Nebula Deep Field
Image Credit & Copyright:
Gianni Lacroce

Explanation: From afar, the whole thing looks like an eagle. A closer look at the Eagle Nebula, however, shows the bright region is actually a window into the center of a larger dark shell of dust. Through this window, a brightly-lit workshop appears where a whole open cluster of stars is being formed. In this cavity, tall pillars and round globules of dark dust and cold molecular gas remain where stars are still forming. Already visible are several young bright blue stars whose light and winds are burning away and pushing back the remaining filaments and walls of gas and dust. The Eagle emission nebula, tagged M16, lies about 6500 light years away, spans about 20 light-years, and is visible with binoculars toward the constellation of the Serpent (Serpens). This picture involved long and deep exposures and combined three specific emitted colors emitted by sulfur (colored as yellow), hydrogen (red), and oxygen (blue).

Tomorrow’s picture: sun streamers

Gianni Lacroce

说明: 从远处望过去,它形似一只老鹰。然而,仔细检视鹰状星云,就会发现其内的亮区,其实是可以望进较大黝黑尘埃壳中心的窗口。透过这个窗口,可见到一座明亮的恒星工厂,正在该处制作整个疏散星团。在这个空穴里,颀长云柱浑圆的云球、及冰冷的分子气体,仍伫留在恒星形成之处。此外,数颗已曝露出的年轻蓝色亮星,正以星光和恒星风,把剩下的云气丝、气体和尘埃壁烧去及后推。编录号为M16的鹰状发射星云,大小约20光年,用双筒望远镜即可在北天巨蛇方向约6,500光年远处看见它的身影。这张长曝光影像,结合了(黄)、 (红)及(蓝)在3个特定波长的辐射。

明日的图片: sun streamers