标签: 木星

观星指南(2023.01)

1月份的天空会发生什么?

行星会有一些近距离的相遇,冬天的明亮恒星,还有机会观测彗星。

木卫一的真实色彩

2022年12月11日 Io in True Color Image Credit: NASA, JPL, Galileo Project Explanation: The strangest moon in the Solar System is bright yellow. The featured picture, an attempt to show how Io would appear in the “true colors” perceptible to the average human eye, was taken in 1999 July by the Galileo spacecraft that orbited Jupiter from 1995 to 2003....

先锋10号飞越木星

In this illustration by Rick Giudice from August 1973, the Pioneer 10 spacecraft passes by the gas giant planet Jupiter. The spacecraft’s primary goal was to explore Jupiter, its satellites, its magnetic field, and trapped radiation belts. Pioneer 10 was the first satellite to pass through an asteroid belt and the first spacecraft to obtain detailed im...

观星指南(2022年12月)

12月的天空会发生什么?你的夜晚行星的亮点,包括火星的消失和天马座。 影像来源:NASA/JPL-Caltech 翻译:灼眼的粉丝 这个月的开始和结束都伴随着月球造访巨行星。12月1日,在夜空中,你会发现月亮与木星只有几指宽的距离。然后,从25日到31日,日落后向西南方向看,你会看到一轮越来越圆的月亮从土星旁边滑过,然后又从木星旁边滑过。拥有清晰地平线视野的观测者将能够在落日余晖中寻找金星和水星,它们就在地平线上方几度的地方。 12月7日是一个神奇的时刻,天空在你眼前发生了巨大的变化。这被称为月掩星,因为月球从红色星球火星前面掠过(或掩星)。北美、欧洲和北非的部分地区都能看到这一奇观。(美国东南部和东海岸的观众将看到月球刚刚掠过火星。)对于美国的观测者来说,火星会在晚上6点30分到9点之间的某个时间消失在月球后...

观星指南(2022年11月)

11月的天空会发生什么?月食,月球和行星,以及狮子座流星雨。 影像来源:NASA/JPL-Caltech 翻译:灼眼的粉丝 11月8日清晨,一场月全食即将到来,为我们带来一点天象魔法。北美洲、太平洋地区、澳大利亚和东亚的人们都可以看到月食,只要月食发生时月亮在地平线上的任何地方都可以看到月食。 对于美国和加拿大东部时区的观测者来说,月偏食在凌晨4点后开始,大约在当地时间5:15左右达到月全食,然后月亮落下,而你仍处于月食中。对于北美洲西海岸的观测者来说,月偏食在凌晨1点之后开始,到凌晨2点15分左右达到月全食。如果天气允许,你可以在日出前看到月全食,因为月球在凌晨5点前几分钟离开地球阴影的黑暗部分(称为本影)。 在月食期间,你可能会注意到你可以看到更多暗淡的恒星,因为通常明亮的满月变暗为暗红色。在月食过程中,使...

自转的木星与旋绕的卫星

2022年10月25日 Jupiter Rotates as Moons Orbit Video Credit & Copyright: Makrem Larnaout Explanation: Jupiter and its moons move like our Sun and its planets. Similarly, Jupiter spins while its moons circle around. Jupiter’s rotation can be observed by tracking circulating dark belts and light zones. The Great Red Spot, the largest storm known, rotates to b...

木卫三阴影中的木星

During its 40th close pass by Jupiter, our Juno spacecraft saw Ganymede cast a large, dark spot on the planet on Feb. 25, 2022. JunoCam captured this image from very close to Jupiter, making Ganymede’s shadow appear especially large. At the time the raw image was taken, the Juno spacecraft was about 44,000 miles (71,000 kilometers) above Jupiter’s cloud tops...

木卫三的影子之下

2022年10月7日 In Ganymede’s Shadow Image Credit & Copyright: Andrew McCarthy Explanation: At opposition, opposite the Sun in Earth’s sky, late last month Jupiter is also approaching perihelion, the closest point to the Sun in its elliptical orbit, early next year. That makes Jupiter exceptionally close to our fair planet, currently resulting in...

诺号的木卫二影像

2022年10月3日 Jupiter’s Europa from Spacecraft Juno Image Credit & License: NASA, JPL-Caltech, SwRI, MSSS; Processing: Andrea Luck Explanation: What mysteries might be solved by peering into this crystal ball? In this case, the ball is actually a moon of Jupiter, the crystals are ice, and the moon is not only dirty but cracked beyond repair. Neverthe...