NGC 6302：蝴蝶星云
(原标题: NGC 6302: The Butterfly Nebula)
2025-06-06
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地球夜空中明亮的星团和星云通常以花朵或昆虫的名字命名，其巨大的3光年翼展，NGC 6302也不例外。据估计，行星状星云的中心恒星表面温度约为25万摄氏度，正在转变为一颗白矮星，变得异常炎热，并在紫外线下发出明亮的光芒。中央的恒星被尘埃环所掩盖，无法直接观测，但它的高能紫外线电离了星云中的原子。在这张由窄带图像数据组成的清晰望远镜图像中，电离的氢原子和双电离的氧原子以其特有的红色和蓝绿色色调显示出来，揭示了星云翅膀状双极流出物中令人惊叹的结和细丝的复合体。NGC 6302位于大约4000光年外的天蝎座（天蝎座）。
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The bright clusters and nebulae of planet Earth's night sky are often given the names of flowers or insects, and its whopping 3 light-year wingspan, NGC 6302 is no exception. With an estimated surface temperature of about 250,000 degrees C, the central star of the planetary nebula is transforming into a white dwarf star, becoming exceptionally hot, and shining brightly in ultraviolet light. The central star is hidden from direct view by a torus of dust, but its energetic ultraviolet light ionizes atoms in the nebula. In this sharp, telescopic view composed with narrowband image data, the ionized hydrogen and doubly ionized oxygen atoms are shown in their characteristic red and blue-green hues to reveal a stunning complex of knots and filaments within the nebula's wing-like bipolar outflows. NGC 6302 lies about 4,000 light-years away in the arachnologically correct constellation of the Scorpion (Scorpius).
© Mike Selby