冲点附近的立体木星影像

2024年12月5日

Stereo Jupiter near Opposition
Image Credit & Copyright: Marco Lorenzi

Explanation: 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.

Tomorrow’s picture: Fireball Tsuchinshan

冲点附近的立体木星影像
影像提供与版权: Marco Lorenzi

说明: 在这二幅摄于屋顶的望远镜影像里，木星相当清晰。这二张摄于新加坡的照片，取像时间皆是去年的11月17日，约莫在2023年木星冲后的2星期。拍照的当时，这颗巨行星高悬在子夜的天空中，距离新加坡只有33.4光分，大约远在4个天文单位之外。影像里，环绕木星的暗带与亮区，以及这颗巨行星的泛白椭圆涡旋皆清晰可辨。此外，木星南半球标志性的大红斑依然很醒目。木星的转速很快，每10小时就会绕轴自转一圈。因此，利用相隔15分钟所拍摄的影片之定格，得以建构出上面的这个立体影像对。请盯着这对照片的中心点看，然后让二眼的视线交错，直到个别的照片重叠在一起，即可见到这颗太阳系最大气态巨行星的立体影像。想当然耳，目前木星离2024年的木星冲并不远，地球将在12月7日再次穿过木星与太阳之间。

明日的图片: Fireball Tsuchinshan