灶神星的虚拟飞越之旅
影像来源与版权:NASA, JPL-Caltech, UCLA, MPS, DLR, IDA; Animation: German Aerospace Center (DLR)

说明:飞越灶神星这颗小行星会见到什么?德国航太中心的动画师,使用数年前美国航太总署的黎明号造访灶神星时,所拍摄的真实影像来制作一部虚拟电影。这部主题影片以在戴瓦利亚槽沟上空拍摄的一序列影像开场,展现这对低谷并排穿过满是撞击坑原野的景观。接着,这艘虚拟的太空船探索灶神星60公里宽的马西娅撞击坑,并显现其内许多鲜明的细微结构。最后,黎明号的影像经过数位重建,高度也经过夸大,以清楚呈现灶神星标高5公里的阿瑞西亚山。身为太阳系小行星带第二大天体的灶神星,是地球天空最明亮的小行星,使用双筒望远镜即可见。使用灶神星之旅,读者可以自行探索灶神星。
翻译:“每日一天文图”成大物理分站

Virtual Flight over Asteroid Vesta
Image Credit & Copyright: NASA, JPL-Caltech, UCLA, MPS, DLR, IDA; Animation: German Aerospace Center (DLR)

Explanation: What would it be like to fly over the asteroid Vesta? Animators from the German Aerospace Center took actual images and height data from NASA’s Dawn mission when it visited asteroid Vesta a few years ago and generated a virtual movie. The featured video begins with a sequence above Divalia Fossa, an unusual pair of troughs running parallel over heavily cratered terrain. Next, the virtual spaceship explores Vesta’s 60-km Marcia Crater, showing numerous vivid details. Last, Dawn images were digitally recast with exaggerated height to better reveal Vesta’s 5-km high mountain Aricia Tholus. The second largest object in the Solar System’s asteroid belt, Vesta is the brightest asteroid visible from Earth and can be found with binoculars. Using Vesta Trek, you can explore all over Vesta yourself.
Astronomy Picture of the Day 06/30/2019