近木轨道11：掠过木星

2019 September 8

Perijove 11: Passing Jupiter
Video Credit & License: NASA, Juno, SwRI, MSSS, Gerald Eichstadt; Music: Moonlight Sonata (Ludwig van Beethoven)

Explanation: Here comes Jupiter! NASA’s robotic spacecraft Juno is continuing on its 53-day, highly-elongated orbits around our Solar System’s largest planet. The featured video is from perijove 11 in early 2018, the eleventh time Juno has passed near Jupiter since it arrived in mid-2016. This time-lapse, color-enhanced movie covers about four hours and morphs between 36 JunoCam images. The video begins with Jupiter rising as Juno approaches from the north. As Juno reaches its closest view — from about 3,500 kilometers over Jupiter’s cloud tops — the spacecraft captures the great planet in tremendous detail. Juno passes light zones and dark belt of clouds that circle the planet, as well as numerous swirling circular storms, many of which are larger than hurricanes on Earth. After the perijove, Jupiter recedes into the distance, now displaying the unusual clouds that appear over Jupiter’s south. To get desired science data, Juno swoops so close to Jupiter that its instruments are exposed to very high levels of radiation.

近木轨道11：掠过木星
影片提供与授权: NASA, Juno, SwRI, MSSS, Gerald Eichstadt; Music: Moonlight Sonata (Ludwig van Beethoven)

说明: 木星迎面而来。美国航太总署的无人太空船朱诺号，持续在为期53天，绕行太阳系最大行星的高度椭圆轨道上运行。上面这部主题影片，摄于近木轨道11（perijove 11），亦即朱诺号在2016年中抵达木星后，第11次掠过木星附近。这部色泽经过强化的缩时影片，制作自涵盖大约4小时期间的36张朱诺相机照片。在这部影片开头时，随着朱诺号从北方接近 木星，木星也随之升起。当朱诺号航行到距离木星云顶约3,500公里的最近点时，太空船也拍下了这颗巨行星无比清晰的影像。朱诺号除了飞过环绕这颗行星的淡色区和暗带之外，也飞过难以数计的圆形涡旋风暴系统，其中有许多大于地球的飓风。通过近木点之后，接着见到逐渐远去的木星南极附近之不寻常云系。为了取得所需要的科学数据，朱诺号得非常近距离掠过木星，因此一再曝露在高辐射的环境里。