日冕日蚀的详细照片
(原标题: Detailed View of a Solar Eclipse Corona)
2024-04-02
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只有在日全食的短暂黑暗中，才能很容易地看到日冕的光。通常被明亮的太阳圆盘覆盖，膨胀的日冕，太阳的外层大气，是一个诱人的景象。但日冕亮度的细微细节和极端范围虽然肉眼可见，但却很难拍摄。然而，这张图片是2023年4月20日在澳大利亚埃克斯茅斯拍摄的日全食期间，使用多张图像和数字处理后的日冕的详细图像。清晰可见的是复杂的层和不断变化的热气体和磁场混合物的发光焦散。明亮的环状日珥在太阳的边缘呈粉红色。在距今天仅6天的日全食期间，在北美的一片狭窄地带，晴朗的天空中可能会看到类似的日冕
查看原文解释
Only in the fleeting darkness of a total solar eclipse is the light of the solar corona easily visible. Normally overwhelmed by the bright solar disk, the expansive corona, the sun's outer atmosphere, is an alluring sight. But the subtle details and extreme ranges in the corona's brightness, although discernible to the eye, are notoriously difficult to photograph. Pictured here, however, using multiple images and digital processing, is a detailed image of the Sun's corona taken during the April 20, 2023 total solar eclipse from Exmouth, Australia. Clearly visible are intricate layers and glowing caustics of an ever changing mixture of hot gas and magnetic fields. Bright looping prominences appear pink just around the Sun's limb. A similar solar corona might be visible through clear skies in a narrow swath across the North America during the total solar eclipse that occurs just six days from today NASA Coverage: Total Solar Eclipse of 2024 April 8
© Phil Hart