天鹅座伽玛星云
(原标题: The Gamma Cygni Nebula)
2022-06-18
浏览次数: 16
超巨星天鹅座伽玛位于北十字星的中心。在我们银河系的平面附近，这个著名的星系在北方夏夜的天空中高高飞翔，位于天鹅座。在这张望远镜拍摄的天空图中，天鹅座伽玛星的正确名称是萨德尔，它也位于中央下方，其颜色是由宽带和窄带图像数据绘制的。这张照片的视野跨度约为3度（6个满月），包括发射星云IC 1318和疏散星团NGC 6910。IC 1318占据了画面的上部，形状像两个发光的宇宙翅膀，被一条长长的黑暗尘埃带分开，它的通俗名字是蝴蝶星云，这是可以理解的。天鹅座伽马的右边是NGC 6910中年轻的、仍然紧密聚集在一起的恒星。到天鹅座伽玛的距离大约是560秒差距或1800光年。估计IC 1318和NGC 6910的距离在2000到5000光年之间。
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Supergiant star Gamma Cygni is at the center of the Northern Cross. Near the plane of our Milky Way galaxy, that famous asterism flies high in northern summer night skies in the constellation Cygnus the Swan. Known by the proper name Sadr, Gamma Cygni also lies just below center in this telescopic skyscape, with colors mapped from both broadband and narrowband image data. The field of view spans about 3 degrees (six Full Moons) on the sky and includes emission nebula IC 1318 and open star cluster NGC 6910. Filling the upper part of the frame and shaped like two glowing cosmic wings divided by a long dark dust lane, IC 1318's popular name is understandably the Butterfly Nebula. Right of Gamma Cygni, are the young, still tightly grouped stars of NGC 6910. The distance to Gamma Cygni is around 560 parsecs or 1,800 light-years. Estimates for IC 1318 and NGC 6910 range from 2,000 to 5,000 light-years.
© Min Xie