Astronomy Picture of the Day——朱诺号拍摄到”大理石”
Jupiter Marble from Juno
Image Credit: NASA/JPL-Caltech/SwRI/MSSS;Processing: Kevin M. Gill
Explanation: What does Jupiter look like upclose? Most images of Jupiter are taken from far away, either from Earth orfrom a great enough distance that nearly half the planet is visible. This shot,though, was composed from images taken relatively close in, where less thanhalf of the planet was visible. From here, Jupiter still appears spherical butperspective distortion now makes it look more like a marble. Visible onJupiter's cloud tops are a prominent dark horizontal belt containing a whiteoval cloud, and a white zone cloud, both of which circle the planet. The GreatRed Spot looms on the upper right. The featured image was taken by the roboticJuno spacecraft in February during its 17th close pass of our Solar System'slargest planet. Juno's mission, now extended into 2021, is to study Jupiter innew ways. Juno's data has already enabled discoveries that include Jupiter'smagnetic field being surprisingly lumpy, and that some of Jupiter's cloudsystems run about 3,000 kilometers into the planet.
朱诺号拍摄到”大理石”
近距离观测木星，它看起来像什么？木星大多数的照片都是从遥远的地方拍摄的，要么是地球，要么是一个可以看到近半个木星的足够远的地方。然而，这幅图像是由很多张近距离拍摄的木星照片合成的。从朱诺号看去，木星仍然是球形，但透视变形使它看起来更像一块大理石。在木星的云顶上可以看到一条明显的黑暗水平带，其中包含一片白色卵形云和一片白色区域云，它们都环绕着木星飞行。大红斑呈现在影像的右上方。这幅特征影像是由朱诺号飞船在2月份第17次飞越过太阳系的最大行星时拍摄的。朱诺号任务现在延长到2021年，以新的方式探索木星。朱诺号的数据已经取得了一些阶段性成果，包括木星磁场变得异常起伏不定，并且木星的一些云系深入这颗行星大约3000公里。
参考文献：
https://apod.nasa.gov/apod/image/1905/JupiterMarble_JunoGill_3000.jpg
近期文章：
Astronomy Picture of the Day——宇宙碰撞造就的星系环