法国高山浮图上空的银河

2022年5月16日

Milky Way over French Alp Hoodoos
Image Credit & Copyright: Benjamin Barakat

Explanation: Real castles aren’t this old. And the background galaxy is even older. Looking a bit like an alien castle, the pictured rock spires are called hoodoos and are likely millions of years old. Rare, but found around the world, hoodoos form when dense rocks slow the erosion of softer rock underneath. The pictured hoodoos survive in the French Alps and are named Demoiselles Coiffées — which translates to English as “Ladies with Hairdos”. The background galaxy is part of the central disk of our own Milky Way galaxy and contains stars that are typically billions of years old. The photogenic Cygnus sky region — rich in dusty dark clouds and red glowing nebulas — appears just above and behind the hoodoos. The featured image was taken in two stages: the foreground was captured during the evening blue hour, while the background was acquired from the same location later that night.

Tomorrow’s picture: shells of stars

法国高山浮图上空的银河
影像提供与版权: Benjamin Barakat

说明: 真的城堡之年代不会像这个结构物这么高龄。而背景的星系则远更古老。这片酷似外星人城堡的美丽石林，是存在年代可能已有数百万年的浮图（hoodoos）。罕见但散布世界各地的浮图，是致密硬岩减缓了下层软岩受侵蚀的产物。范例之一为影像中，这些位于法国阿尔卑斯山中、法语称之为卷发贵妇岩（Demoiselles Coiffées）的石柱。影像中背景星系，则是我们银河系部分的中央盘面，其内汇集着年龄通常有数十亿年的恒星。而悬在浮图上方及后方的，则是聚集着大量黝黑暗星云和泛红发射星云的美丽天鹅座天区。这幅主题影像分二阶段拍摄，前景摄于夜晚的蓝色时分，而背景则是摄于同一地点的那夜稍晚。

明日的图片: shells of stars