近木星轨道16：掠过木星

2024年4月21日

Perijove 16: Passing Jupiter
Video Credit & License: NASA, Juno, SwRI, MSSS, Gerald Eichstadt;
Music: The Planets, IV. Jupiter (Gustav Holst); USAF Heritage of America Band (via Wikipedia)

Explanation: Watch Juno zoom past Jupiter. NASA‘s robotic spacecraft Juno is continuing on its now month-long, highly-elongated orbits around our Solar System’s largest planet. The featured video is from perijove 16, the sixteenth time that Juno passed near Jupiter since it arrived in mid-2016. Each perijove passes near a slightly different part of Jupiter’s cloud tops. This color-enhanced video has been digitally composed from 21 JunoCam still images, resulting in a 125-fold time-lapse. 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 belts of clouds that circle the planet, as well as numerous swirling circular storms, many of which are larger than hurricanes on Earth. As Juno moves away, the remarkable dolphin-shaped cloud is visible. 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.

Tomorrow’s picture: volcano emits rings

近木星轨道16：掠过木星
影片提供与授权: NASA, Juno, SwRI, MSSS, Gerald Eichstadt;
配乐: The Planets, IV. Jupiter (Gustav Holst); USAF Heritage of America Band (via Wikipedia)

说明: 请观赏朱诺号掠过木星所见到的景观。美国航空航天局的无人航天器朱诺号，目前持续在为期1个月、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16，亦即朱诺号在2016年中抵达木星后，第16次掠过木星附近。而每一次的近木星轨道，会通过木星云顶稍微不同的区域。这部色泽经过强化的1比125缩时影片，数位组合自朱诺号相机拍摄的21张照片。在这部影片的开头，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，航天器拍下了这颗巨行星无比清晰的影像。朱诺号除了掠过环绕这颗行星的淡色云区和暗带之外，也飞过难以数计的圆形涡旋风暴系统，其中许多大于地球上的飓风。接着随着朱诺号远离木星，木星奇特的海豚云也随之现踪。在通过近木点之后，视野中的木星逐渐远去，而木星南极附近的不寻常云系也变得清晰可见。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，因此它的仪器曝露在极高辐射的环境中。

明日的图片: volcano emits rings