标签: 火卫一

火星上空的火卫一

2023年7月31日 Phobos over Mars Image Credit: ESA, DLR, FU Berlin, Mars Express; Processing & CC BY 2.0 License: Andrea Luck Explanation: Why is Phobos so dark? Phobos, the largest and innermost of the two Martian moons, is the darkest moon in the entire Solar System. Its unusual orbit and color indicate that it may be a captured asteroid composed of a mixt...

史蒂克妮坑

2023年7月8日 Stickney Crater Image Credit: HiRISE, MRO, LPL (U. Arizona), NASA Explanation: Stickney Crater, the largest crater on the martian moon Phobos, is named for Chloe Angeline Stickney Hall, mathematician and wife of astronomer Asaph Hall. Asaph Hall discovered both the Red Planet’s moons in 1877. Over 9 kilometers across, Stickney is nearly half ...

火卫一的立体影像

2022年8月6日 Stereo Phobos Image Credit: G. Neukum (FU Berlin) et al., Mars Express, DLR, ESA Explanation: Get out your red/blue glasses and float next to Phobos, grooved moon of Mars! Captured in 2004 by the High Resolution Stereo Camera on board ESA’s Mars Express spacecraft, the image data was recorded at a distance of about 200 kilometers from the mar...

火卫一:注定灭亡的卫星

2022年7月3日 Phobos: Doomed Moon of Mars Image Credit: HiRISE, MRO, LPL (U. Arizona), NASA Explanation: This moon is doomed. Mars, the red planet named for the Roman god of war, has two tiny moons, Phobos and Deimos, whose names are derived from the Greek for Fear and Panic. These martian moons may well be captured asteroids originating in the main asteroid bel...

火星的日食:火卫一凌日

2022年5月9日 A Martian Eclipse: Phobos Crosses the Sun Video Credit: NASA, JPL-Caltech, ASU MSSS, SSI Explanation: What’s that passing in front of the Sun? It looks like a moon, but it can’t be Earth’s Moon, because it isn’t round. It’s the Martian moon Phobos. The featured video was taken from the surface of Mars a month ago by th...

火星快车拍摄的火卫一

2020年11月8日 Martian Moon Phobos from Mars Express Image Credit: G. Neukum (FU Berlin) et al., Mars Express, DLR, ESA; Acknowledgement: Peter Masek Explanation: Why is Phobos so dark? Phobos, the largest and innermost of two Martian moons, is the darkest moon in the entire Solar System. Its unusual orbit and color indicate that it may be a captured asteroid co...

火卫一,火卫二与火星

2020年10月30日 Fear and Dread: The Moons of Mars Composite Image Credit & Copyright: Dennis Simmons Explanation: On Halloween fear and dread will stalk your night skies, also known as Phobos and Deimos the moons of Mars. The 2020 opposition of Mars was on October 13, so the Red Planet will still rise shortly before sunset. Near Halloween’s Full Moon ...

糖果色的火卫一

As of March 2020, our Mars Odyssey spacecraft has captured these six views of the Martian moon Phobos. The orbiter’s infrared camera, the Thermal Emission Imaging System (THEMIS), is used to measure temperature variations that provide insight into the physical properties and composition of the moon. Chronologically, the views represent waxing, waning a...

在火星上“赏月”

火卫一的三个视图由NASA的2001火星奥德赛号(2001 Mars Odyssey orbiter)使用其红外摄像机THEMIS拍摄。颜色代表不同的温度范围。 Credits: NASA/JPL-Caltech/ASU/SSI 我们第一次看到了满月时的火卫一(Phobos),由NASA的火星奥德赛号拍摄。就像在地球上赏月一样,当我们刚好看到月球被太阳照亮的那一面时,这时的月相(phase)称为满月(full moon)。这张图片中的不同颜色代表奥德赛红外相机检测到的温度范围,该相机自2017年9月开始研究火星卫星。火卫一是火星两个卫星中较大的那个,每七小时绕火星一圈,从图片看起来像个彩虹色的大块硬糖(jawbreaker),这些最新的观测结果可以帮助科学家了解它的构成。 奥德赛号是NASA历史最悠久的火星任务...