三颗行星和一颗彗星
(原标题: Three Planets and a Comet)
2021-12-23
浏览次数: 4
你还在为天文学家寻找完美的节日礼物吗？如果你的夜空很黑，地平线足够清晰，那么太阳系可能已经帮你买了东西。日落后把他们送到外面去看三颗行星和一颗彗星。在这张土耳其基拉兹利村拍摄的12月至日傍晚天空的快照中，最亮的天体信标是金星，它靠近右边的西南地平线。向左向上看，你会发现土星在云层之间闪闪发光。沿着这条线往左走，一直走到明亮的木星，太阳系中最大的气体巨星。今年内太阳系的意外访客，莱纳德彗星（C/2021 A1）也在地平线附近。这颗彗星比较暗淡，但在这张照片中，它与金星和土星形成了一个近乎等边的三角形。在最近几天的一次戏剧性的变亮之后，这颗彗星只能用肉眼看到，尽管一副漂亮的双筒望远镜总是一个好主意。值得注意的提交给APOD：行星连珠：2021年12月
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Are you still looking for that perfect holiday gift for an astronomer? If your night sky is dark and horizon clear enough, the Solar System may have done your shopping for you. Send them outside after sunset to see three planets and a comet. In this snapshot of the December solstice evening sky from the village of Kirazli, Turkey the brightest celestial beacon is Venus, close to the southwestern horizon at the right. Look left and up to find Saturn shining between clouds. Follow that line farther left and up to bright Jupiter, the Solar System's ruling gas giant. This year's surprise visitor to the inner Solar System, Comet Leonard (C/2021 A1), is near the horizon too. The comet is fainter but forms a nearly equilateral triangle with planets Venus and Saturn in this view. After a dramatic brightening in recent days the comet is just visible to the unaided eye, though a nice pair of binoculars is always a good idea. Notable Submissions to APOD: Planetary Alignment: 2021 December
© Tunc Tezel