NGC 6357：龙虾星云
(原标题: NGC 6357: The Lobster Nebula)
2022-11-01
浏览次数: 20
为什么龙虾星云会形成一些已知的质量最大的恒星？没有人能确定。龙虾星云的编号为NGC 6357，它的中心附近有一个疏散星团Pismis 24，这是一个异常明亮和巨大的恒星的家园。内部恒星形成区域附近的整体红光是电离氢气发射的结果。周围的星云，如图所示，拥有复杂的气体、暗尘埃、仍在形成的恒星和新生恒星的织锦。这些复杂的图案是由星际风、辐射压力、磁场和重力之间复杂的相互作用造成的。这张照片是由美国能源部的暗能量相机拍摄的，该相机安装在智利塞罗托洛洛美洲天文台的4米布兰科望远镜上。NGC 6357横跨约400光年，位于距离天蝎座约8000光年的地方。
查看原文解释
Why is the Lobster Nebula forming some of the most massive stars known? No one is yet sure. Cataloged as NGC 6357, the Lobster Nebula houses the open star cluster Pismis 24 near its center -- a home to unusually bright and massive stars. The overall red glow near the inner star forming region results from the emission of ionized hydrogen gas. The surrounding nebula, featured here, holds a complex tapestry of gas, dark dust, stars still forming, and newly born stars. The intricate patterns are caused by complex interactions between interstellar winds, radiation pressures, magnetic fields, and gravity. The image was taken with DOE's Dark Energy Camera on the 4-meter Blanco Telescope at the Cerro Tololo Inter-American Observatory in Chile. NGC 6357 spans about 400 light years and lies about 8,000 light years away toward the constellation of the Scorpion.