冥王星地貌
(原标题: A Plutonian Landscape)
2025-05-15
浏览次数: 31
在这个遥远的小世界上，雄伟的山脉和冰冷的平原组成的阴影景观一直延伸到地平线上。这张照片是在2015年7月14日新视野号接近冥王星15分钟后，从新视野号回望冥王星时从大约1.8万公里的距离拍摄的。这幅戏剧性的、低角度的、接近黄昏的景象，从前景左边看是崎岖的诺盖山脉，从地平线上看是希拉里山脉，右边是平滑的斯普特尼克平原。冥王星稀薄的大气层层也在背光视图中显露出来。有着奇怪熟悉的外观，寒冷的地形可能包括氮和一氧化碳的冰，水冰山脉高达3500米（11,000英尺）。它的高度堪比地球上雄伟的山脉。冥王星的地形宽380公里（230英里）。
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This shadowy landscape of majestic mountains and icy plains stretches toward the horizon on a small, distant world. It was captured from a range of about 18,000 kilometers when New Horizons looked back toward Pluto, 15 minutes after the spacecraft's closest approach on July 14, 2015. The dramatic, low-angle, near-twilight scene follows rugged mountains formally known as Norgay Montes from foreground left, and Hillary Montes along the horizon, giving way to smooth Sputnik Planum at right. Layers of Pluto's tenuous atmosphere are also revealed in the backlit view. With a strangely familiar appearance, the frigid terrain likely includes ices of nitrogen and carbon monoxide with water-ice mountains rising up to 3,500 meters (11,000 feet). That's comparable in height to the majestic mountains of planet Earth. The Plutonian landscape is 380 kilometers (230 miles) across.