APOD251121 彗星 3I/ATLAS:来自地球的观察
彗星 3I/ATLAS:来自地球的观察
图像提供 & 版权[1]: Rolando Ligustri[2]
英文原文:Explanation: Now outbound after its perihelion or closest approach to the Sun on October 29, Comet 3I/ATLAS is only the third known interstellar object to pass through our fair Solar System. Its greenish coma and faint tails are seen against a background of stars in the constellation Virgo in this view from planet Earth , recorded with a small telescope on November 14. But this interstellar interloper is the subject of an on-going, unprecedented Solar System-wide observing campaign involving spacecraft and space telescopes from Earth orbit to the surface of Mars and beyond . And while the comet from another star-system has recently grown brighter , you'll still need a telescope if you want to see 3I/ATLAS from planet Earth. It's now above the horizon in November morning skies and will make its closest approach to Earth, a comfortable 270 million kilometers distant, around December 19. 说明: 彗星 3I/ATLAS [3]于10月29日过近日点(即距离太阳最近的点)后,目前正逐渐远离太阳,这是已知第三颗穿越我们美丽太阳系的星际天体。 在这幅以小望远镜摄于11月14日来自地球的观测照片[4]中,彗星的绿色彗发和微弱的彗尾映衬在室女座的星空背景中。 然而,这位星际访客[5]正成为一项史无前例的太阳系观测计划[6]的主题,这项计划动用了从地球轨道到火星表面乃至更远行星[7]的太空船和太空望远镜进行观测。 虽然这颗来自其他恒星系统的彗星最近亮度有所增加[8],但如果你想从地球上观测彗星3I/ATLAS[9],仍然需要使用望远镜。 目前,它已出现在11月的晨空[10]中,并将于12月19日左右到达距离地球最近的点,距离约为2.7亿公里。
明日的图片: Dione and Rhea Ring Transit[11]
Authors & editors: Robert Nemiroff[12] (MTU[13]) & Jerry Bonnell[14] (UMCP[15])
NASA Official: Amber Straughn Specific rights apply[16].
NASA Web Privacy[17], Accessibility[18], Notices[19];
A service of: ASD[20] at NASA[21] / GSFC[22],
NASA Science Activation[23]
& Michigan Tech. U.[24]
太空天文实验室(成功大学物理系)
<br/> 编辑:<a href="mailto:hantzong.su@gmail.com" style="color:gray;" target="_blank">苏汉宗</a>
编辑:陈炳志[25]
[1]http://apod.nasa.gov/apod/lib/about_apod.html#srapply
[2]https://www.instagram.com/rolandoligustri/
[3]https://science.nasa.gov/solar-system/comets/3i-atlas/
[4]https://www.instagram.com/rolandoligustri/p/DRCsqxPDFHM/
[5]http://apod.nasa.gov/apod/ap250809.html
[6]https://science.nasa.gov/solar-system/comets/3i-atlas/comet-3i-atlas-image-gallery/
[8]https://www.arxiv.org/abs/2510.25035
[9]https://earthsky.org/space/new-interstellar-object-candidate-heading-toward-the-sun-a11pl3z/
[10]https://theskylive.com/c2025n1-info
[11]http://apod.nasa.gov/apod/ap251121.html
[12]http://www.phy.mtu.edu/faculty/Nemiroff.html
[14]https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
[16]http://apod.nasa.gov/apod/lib/about_apod.html#srapply
[17]https://www.nasa.gov/about/highlights/HP_Privacy.html
[18]https://www.nasa.gov/general/accessibility/
[19]https://www.nasa.gov/privacy/
[20]https://astrophysics.gsfc.nasa.gov/
[22]https://www.nasa.gov/centers/goddard/
[23]https://science.nasa.gov/learners
[25]mailto:alfred@ncku.edu.tw
http://apod.nasa.gov/apod/ap251121.html
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