2020年12月19日 Conjunction after Sunset Image Credit & Copyright: Alireza Vafa Explanation: How close will Jupiter and Saturn be at their Great Conjunction? Consider this beautiful triple conjunction of Moon, Jupiter and Saturn captured through clouds in the wintry twilight. The telephoto view loo […]
2020年12月13日星期日，在弗吉尼亚州卢雷，雪兰多国家公园日落后拍摄的土星(上方)和木星(下方)。两颗行星在12月21日朝着大近合前进时，彼此之间的距离越来越近，这两个巨行星之间的距离将相差十分之一度。 来源：NASA / Bill Ingalls 天文爱好者迎来了年终盛宴。俗称“圣诞节之星”的是一颗特别活跃的行星结，在接下来的两周里，当明亮的木星和土星近合在12月21日晚上达到顶峰时，很容易在傍晚的天空中看到它们。 1610年，意大利天文学家伽利略·伽利莱（Galileo Galilei）将望远镜对准夜空，发现了木星的四个卫星——木卫一、木卫二、木卫三和木卫四。同一年，伽利略还在土星周围
2020年12月15日 Great Conjunction: Saturn and Jupiter Converge Illustration Credit & Copyright: Sebastian Voltmer Explanation: It’s happening. Saturn and Jupiter are moving closer and will soon appear in almost exactly the same direction. Coincidentally, on the night of the December solstice &
2020年12月12日 Saturn and Jupiter in Summer 2020 Image Credit & Copyright: Tunc Tezel (TWAN), Onur Durma Explanation: During this northern summer Saturn and Jupiter were both near opposition, opposite the Sun in planet Earth’s sky. Their paired retrograde motion, seen about every 20 years, i
2020年12月08日 Great Conjunction over Sicilian Lighthouse Image Credit & Copyright: Kevin Saragozza Explanation: Don’t miss the coming great conjunction. In just under two weeks, the two largest planets in our Solar System will angularly pass so close together in Earth’s sky that the Moon wo
Credit: NASA/JPL-Caltech 十二月的天空会发生什么？一场流星雨，一场木星和土星之间的罕见的近距离接触，还有冬至。 Credit: NASA/JPL-Caltech 12月带来了每年最可靠的流星雨之一，也是2020年最好的流星雨之一——双子座流星雨。这场流星雨从12月4日到17日非常活跃，因为地球在小行星法厄同3200轨道上留下的尘埃碎片的痕迹中穿行。这可能是一颗被烧毁的彗星。 双子座流星雨大多数年份都能产生大量的流星，但今年的流星雨更甚。因为流星雨的高峰期正好赶上新月的到来，因此天空变得更暗，没有月光来干扰较暗的流星，双子座流星雨在12月13日夜间至14日早晨达到高峰，前
2020年10月20日 Saturn and Jupiter over Italian Peaks Image Credit & Copyright: Giorgia Hofer Explanation: Saturn and Jupiter are getting closer. Every night that you go out and check for the next two months, these two bright planets will be even closer together on the sky. Finally, in mid-December
2020年8月14日 Jupiter and Saturn Rising Beyond Alien Throne Rock Image Credit & Copyright: Marcin Zając Explanation: What planets are those behind that unusual rock spire? Saturn (lower left) and Jupiter. This month, after sunset, the bright planetary duo are quite prominent toward the southeast.
2020年8月8日 Crescent Saturn Image Credit: NASA, ESA, SSI, Cassini Imaging Team Explanation: From Earth, Saturn never shows a crescent phase. But when viewed from a spacecraft the majestic giant planet can show just a sunlit slice. This image of crescent Saturn in natural color was taken by the robotic
2020年7月29日 The Giants of Summer Image Credit & Copyright: Jean-Luc Dauvergne Explanation: As Comet NEOWISE sweeps through northern summer skies, Jupiter and Saturn are shining brightly, near opposition. With Jupiter opposite the Sun on July 14 and Saturn on July 21, the giant planets are still
