Mars-Saturn结合
(原标题: Mars-Saturn Conjunction)
2022-04-09
浏览次数: 21
黄道带摩羯座中较暗的恒星散布在黄道平面附近。中间最亮的两颗根本不是恒星，而是火星和土星。这张摄于4月4日早晨的望远镜快照，捕捉到了黎明前天空中它们诱人的近距离结合，这对行星之间的距离仅为1/3度。这比满月的宽度要小得多。你能分辨出哪个星球是哪个星球吗？如果你猜火星是更红的那颗，那你就对了。在火星上方，略显暗淡的土星在反射的阳光中仍然发出淡黄色的光芒。即使在低倍率下，也可以看到土星最大、最亮的卫星土卫六紧紧地拥抱在左边。
查看原文解释
Fainter stars in the zodiacal constellation Capricornus are scattered near the plane of the ecliptic in this field of view. The two brightest ones at center aren't stars at all though, but the planets Mars and Saturn. Taken on the morning of April 4, the telescopic snapshot captured their tantalizing close conjunction in a predawn sky, the pair of planets separated by only about 1/3 of a degree. That's easily less than the apparent width of a Full Moon. Can you tell which planet is which? If you guessed Mars is the redder one , you'd be right. Above Mars, slightly fainter Saturn still shines with a paler yellowish tinge in reflected sunlight. Even at the low magnification, Saturn's largest and brightest moon Titan can be spotted hugging the planet very closely on the left.
© Damian Peach