日全食时的地球
地球的一部分被蓝色的海洋和白色的云所描绘。左上角是深空黑暗背景。地球上有一个明显的大黑点。有关更多详细信息，请参阅说明。
树荫里的日食
2023年10月15日 An Eclipse Tree Image Credit & Copyright: Shawn Wyre Explanation: Yes, but can your tree do this? If you look closely at the ground in the featured image, you will see many images of yesterday’s solar eclipse — created by a tree. Gaps between tree leaves act like pinhole lenses and each create a small image of the partially eclipsed Sun visible in the other direction. The image was taken in Burleson, Texas, USA. Yesterday, people across the Americas were treated to a partial eclipse of the Sun, when the Moon moves in front of part of the Sun. People in a narrow band of Earth were treated to an annular eclipse, also called a ring-of-fire eclipse, when the Moon becomes completely engulfed by…
来自阴影相机的沙克尔顿坑
2023年5月5日 Shackleton from ShadowCam Image Credit: NASA, ShadowCam, Korea Aerospace Research Institute, Arizona State University Explanation: Shackleton crater lies at the lunar south pole. Peaks along the 21 kilometer diameter are in sunlight, but Shackleton’s floor is in dark permanent shadow. Still, this image of the shadowed rim wall and floor of Shackleton crater was captured from NASA’s ShadowCam, an instrument on board the Korea Pathfinder Lunar Orbiter (KPLO) launched in August 2022. About 200 times more sensitive than, for example, the Lunar Reconnaissance Orbiter’s Narrow Angle Camera, ShadowCam was designed image the permanently shadowed regions of the lunar surface. Avoiding direct sunlight, those regions are expected to be reservoirs of water-ice and other volatiles deposited by ancient cometary impacts and useful to future Moon…
木星上的卫星影子
2022年4月27日 Moon Shadow on Jupiter Image Credit: NASA/JPL-Caltech/SwRI/MSSS; Processing & License: Thomas Thomopoulos Explanation: What is that large dark spot on Jupiter? It’s the shadow of Ganymede, Jupiter’s largest moon. When Jupiter’s moons cross between the Jovian giant and the Sun, they created shadows just like when the Earth’s moon crosses between the Earth and the Sun. Also like on Earth, if you were in a dark shadow on Jupiter, you would see a moon completely eclipse the Sun. Unlike on Earth, moon shadows occur most days on Jupiter — what’s more unusual is that a spacecraft was close enough to record one with a high-resolution image. That spacecraft, Juno, was passing so close to Jupiter in late February that nearby clouds and the dark…
月球南极的阴影图
2022年4月10日 Shadows at the Moon’s South Pole Image Credit: NASA, Arizona State U., Lunar Reconnaissance Orbiter Explanation: Was this image of the Moon’s surface taken with a microscope? No — it’s a multi-temporal illumination map made with a wide-angle camera. To create it, the Lunar Reconnaissance Orbiter spacecraft collected 1,700 images over a period of 6 lunar days (6 Earth months), repeatedly covering an area centered on the Moon’s south pole from different angles. The resulting images were stacked to produce the featured map — representing the percentage of time each spot on the surface was illuminated by the Sun. Remaining convincingly in shadow, the floor of the 19-kilometer diameter Shackleton crater is seen near the map’s center. The lunar south pole itself is at…
日全食期间的地球
2020年12月29日 Earth During a Total Solar Eclipse Video Credit: GOES-16, ABI, NOAA, NASA Explanation: What does the Earth look like during a total solar eclipse? It appears dark in the region where people see the eclipse, because that’s where the shadow of the Moon falls. The shadow spot rapidly shoots across the Earth at nearly 2,000 kilometers per hour, darkening locations in its path — typically for only a few minutes — before moving on. The featured video shows the Earth during the total solar eclipse earlier this month. The time-lapse sequence, taken from a geostationary satellite, starts with the Earth below showing night but the sun soon rises at the lower right. Clouds shift as day breaks over the blue planet. Suddenly the circular…
国际空间站下方的月影
2020 June 27 Eclipse under the ISS Image Credit: NASA ISS Expedition 63 Explanation: The dark shadow of the New Moon reached out and touched planet Earth on June 21. A high definition camera outside the International Space Station captured its passing in this snapshot from low Earth orbit near the border of Kazakhstan and China. Of course those along the Moon’s central shadow track below could watch the much anticipated annular eclipse of the Sun. In the foreground a cargo spacecraft is docked with the orbital outpost. It’s the H-II Transfer Vehicle-9 from JAXA the Japan Aerospace Exploration Agency. Gallery: Notable images of the Annular Solar Eclipse of 2020 June submitted to APOD Tomorrow’s picture: moons and shadows 国际空间站下方的月影 影像提供：NASA ISS Expedition 63 说明：在6月21日，向太空伸展的新月影子落到地球上。而挂在国际太空站外头的高画质摄影机，从低地球轨道上，恰好拍下这幅影像捕捉到影子掠过哈萨克斯坦共和国和中国的边境。想当然耳，在月亮影子中心掠过地区的人们，得以见到引颈翘望的日环食。影像的前景，可见到一艘停泊在这个轨道前哨站的补给太空船。它是日本宇宙航空研究开发机构（JAXA），所派遗的H-II第8号补给船。…