卡西尼号拍摄的土星红外线照片
(原标题: Saturn in Infrared from Cassini)
2025-02-23
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土星在红外线下看起来略有不同。云带显示出巨大的结构，包括长时间伸展的风暴。在红外线中，土星北极周围不寻常的六边形云图案也很引人注目。黑暗六边形的每条边大致相当于地球的宽度。六边形的存在没有被预测到，它的起源和可能的稳定性仍然是一个研究课题。土星著名的光环环绕着这颗行星，并在赤道下投下阴影。这张特色图像是由卡西尼号宇宙飞船在2014年拍摄的几种红外颜色。2017年9月，卡西尼号的任务戏剧性地结束了，飞船被指示潜入这颗带环的巨行星。你的天空惊喜：APOD在你的生日上展示了什么照片？(1995后)
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Saturn looks slightly different in infrared light. Bands of clouds show great structure, including long stretching storms. Also quite striking in infrared is the unusual hexagonal cloud pattern surrounding Saturn's North Pole. Each side of the dark hexagon spans roughly the width of our Earth. The hexagon's existence was not predicted, and its origin and likely stability remain a topics of research. Saturn's famous rings circle the planet and cast shadows below the equator. The featured image was taken by the robotic Cassini spacecraft in 2014 in several infrared colors. In 2017 September, the Cassini mission was brought to a dramatic conclusion when the spacecraft was directed to dive into the ringed giant. Your Sky Surprise: What picture did APOD feature on your birthday? (post 1995)