李奥纳德彗星

天文·每日一图

影片:李奥纳德彗星的一小时

2022年1月25日 Video: Comet Leonard over One Hour Video Credit & Copyright: Matipon Tangmatitham (NARIT); Text: Matipon Tangmatitham Explanation: Which direction is this comet heading? Judging by the tail, one might imagine that Comet Leonard is traveling towards the bottom right, but a full 3D ana […]

NASA·每日一图

摄于澳洲的李奥纳德彗星特写

2022年1月12日 Comet Leonard Closeup from Australia Image Credit & Copyright: Blake Estes (itelescope.net) Explanation: What does Comet Leonard look like up close? Although we can’t go there, imaging the comet’s coma and inner tails through a small telescope gives us a good idea. As the

天文·每日一图

李奥纳德彗星摇摆的彗尾

2022年1月10日 Comet Leonard’s Tail Wag Image Credit: NASA, NRL, STEREO-A; Processing: B. Gallagher Explanation: Why does Comet Leonard’s tail wag? The featured time-lapse video shows the ion tail of Comet C/2021 A1 (Leonard) as it changed over ten days early last month. The video was taken

天文·每日一图

李奥纳德彗星的长尾

2022年1月3日 Comet Leonard’s Long Tail Image Credit & Copyright: Jan Hattenbach Explanation: You couldn’t see Comet Leonard’s extremely long tail with a telescope — it was just too long. You also couldn’t see it with binoculars — still too long. Or with your eyes — it was t

天文·每日一图

李奥纳德彗星的超长彗尾

2021年12月30日 The Further Tail of Comet Leonard Image Credit & Copyright: Daniele Gasparri Explanation: Comet Leonard, brightest comet of 2021, is at the lower left of these two panels captured on December 29 in dark Atacama desert skies. Heading for its perihelion on January 3 Comet Leonard&#821

天文·每日一图

圣诞彗星的彗尾

2021年12月25日 The Tail of a Christmas Comet Image Credit & Copyright: Rolando Ligustri (CARA Project, CAST) and Lukas Demetz Explanation: The tail of a comet streams across this three degree wide telescopic field of view captured under dark Namibian skies on December 21. In outburst only a few da

天文·每日一图

三行星与一颗彗星

2021年12月23日 Three Planets and a Comet Image Credit & Copyright: Tunc Tezel (TWAN) Explanation: 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

天文·每日一图

彗星与火流星

2021年12月20日 The Comet and the Fireball Image Credit & Copyright: Cory Poole Explanation: This picture was supposed to feature a comet. Specifically, a series of images of the brightest comet of 2021 were being captured: Comet Leonard. But the universe had other plans. Within a fraction of a sec

天文·每日一图

从太空看李奥纳德彗星

2021年12月15日 Comet Leonard from Space Image Credit & Copyright: Zhuoxiao Wang, Yangwang-1 Space Telescope, Origin.Space Explanation: What does Comet Leonard look like from space? Today’s featured image from Origin.Space’s Yangwang-1 space telescope shows not only the currently bright

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