冲位置附近的立体火星

2022年12月3日

Stereo Mars near Opposition
Image Credit & Copyright: Marco Lorenzi

Explanation: Mars looks sharp in these two rooftop telescope views captured in late November from Singapore, planet Earth. At the time, Mars was about 82 million kilometers from Singapore and approaching its opposition, opposite the Sun in planet Earth’s sky on December 8. Olympus Mons, largest of the volcanoes in the Tharsis Montes region (and largest known volcano in the Solar System), is near Mars’ western limb. In both the images it’s the whitish donut-shape at the upper right. The dark area visible near center is the Terra Sirenum region while the long dark peninsula closest to the planet’s eastern limb is Sinus Gomer. Near its tip is Gale crater, the Curiosity rover’s landing site in 2012. Above Sinus Gomer, white spots are other volcanoes in the Elysium region. At top of the planet is the north polar cap covered with ice and clouds. Taken about two days apart, these images of the same martian hemisphere form a stereo pair. Look at the center of the frame and cross your eyes until the separate images come together to see the Red Planet in 3D.

Tomorrow’s picture: Powers of Ten

冲位置附近的立体火星
图像提供与版权: Marco Lorenzi

说明: 在今年11月下旬摄于地球.新加坡某座屋顶的这两幅望远镜图像里，火星看起来极为清晰。拍照的当时，火星离新加坡约8200万公里远，正往12月8日在地球天空中与太阳反向的火星冲位置迈进。在这两幅图像里，塔尔西斯山区最大的奥林匹斯山（也是太阳系现知最大的火山），是右上角、火星的西侧临边（右）附近的泛白甜甜圈结构。图像中心附近黝黑区域是塞壬台地（Terra Sirenum），而东侧临边附近的颀长暗色半岛为郭默湾（Sinus Gomer）。半岛尖端附近的盖尔坑，正是好奇号火星车在2012年的着陆点。郭默湾上方的白色斑点，是埃律西昂区里的其他火山。在火星顶部的，是笼罩着冰与云的北极冠。这两张呈现相同火星半球并作为立体图像对的照片，取像的时间约相隔2天。盯着上面图像的中心看，并交叉双眼视线直到分离的照片合而为一，即可见到这颗红色行星的三维景观。

明日的图片: Powers of Ten