埃特纳火山上空的ZTF彗星
(原标题: Comet ZTF over Mount Etna)
2023-01-28
浏览次数: 15
从地球上拍摄的这幅冬天的山景和天空景观中，彗星状的羽状物正吹过埃特纳火山的火山山峰。在1月23日寒冷的夜晚记录的单个曝光的叠加和混合组合也捕捉到了埃特纳雪坡上方的ZTF彗星。当然，彗星彗核受到的阳光照射增加以及太阳风的影响是造成彗星发绿的彗发和宽阔的尘埃尾巴的原因。这个周末ZTF彗星将划过北极星和北斗七星之间的北方天空。从一个黑暗的网站，你只能看到它作为一个模糊的补丁。这仍然是一项令人印象深刻的成就，如果你考虑到你正在用自己的眼睛凝视着一位来自遥远奥尔特云的访客的话。但在未来的几天里，双筒望远镜或小型望远镜将使这颗ZTF彗星的景色更加令人愉快。彗星ZTF画廊：值得注意的提交给APOD
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Comet-like plumes are blowing over the volcanic peaks of Mount Etna in this wintry mountain-and-skyscape from planet Earth. The stacked and blended combination of individual exposures recorded during the cold night of January 23, also capture naked-eye Comet ZTF just above Etna's snowy slopes. Of course the effect of increasing sunlight on the comet's nucleus and the solar wind are responsible for the comet's greenish coma and broad dusty tail. This weekend Comet ZTF is dashing across northern skies between north star Polaris and the Big Dipper. From a dark site you can only just spot it as a fuzzy patch though. That's still an impressive achievement if you consider you are gazing at a visitor from the distant Oort cloud with your own eyes. But binoculars or a small telescope will make for an even more enjoyable view of this Comet ZTF in the coming days. Comet ZTF Gallery: Notable Submissions to APOD
© Dario Giannobile