近冲日的立体木星
(原标题: Stereo Jupiter near Opposition)
2024-12-05
浏览次数: 18
在这两张屋顶望远镜的图像中，木星看起来很清晰。它们都是去年11月17日在地球上的新加坡被捕获的，大约在木星2023年冲日的两周后。在午夜的天空中，这颗巨大的行星距离新加坡只有33.4光分。距离大约是4个天文单位。木星环绕的暗带和亮带的细节非常清晰，还有这个巨大世界的白色椭圆形漩涡。其标志性的大红斑在南部很突出。木星每10小时绕其轴快速旋转一次。因此，基于间隔仅15分钟的视频帧，这些图像形成了一对立体图像。看着这对图像的中心，交叉眼睛，直到分开的图像聚集在一起，看到3D效果。当然，木星现在离2024年的冲日点不远了。12月7日，地球将从太阳系的气态巨行星木星和太阳之间经过。
查看原文解释
Jupiter looks sharp in these two rooftop telescope images. Both were captured last year on November 17 from Singapore, planet Earth, about two weeks after Jupiter's 2023 opposition. Climbing high in midnight skies the giant planet was a mere 33.4 light-minutes from Singapore. That's about 4 astronomical units away. Jupiter's planet girdling dark belts and light zones are visible in remarkable detail, along with the giant world's whitish oval vortices. Its signature Great Red Spot is prominent in the south. Jupiter rotates rapidly on its axis once every 10 hours. So, based on video frames taken only 15 minutes apart, these images form a stereo pair. Look at the center of the pair and cross your eyes until the separate images come together to see the 3D effect. Of course Jupiter is now not far from its 2024 opposition. Planet Earth is set to pass between the Solar System's ruling gas giant and the Sun on December 7.
© Marco Lorenzi