APOD251201 3I ATLAS:星际彗星的尾迹
3I ATLAS:星际彗星的尾迹
图像提供与版权: Victor Sabet & Julien De Winter[1]
英文原文:Explanation: How typical is our Solar System? Studying 3I/ATLAS , a comet just passing through, is providing clues. Confirmed previous interstellar visitors include an asteroid , a comet , a meteor , and a gas wind dominated by hydrogen and helium. Comet 3I/ATLAS appears relatively normal when compared to Solar System comets , therefore providing more evidence that our Solar System is a somewhat typical star system. For example, Comet 3I/ATLAS has a broadly similar chemical composition and ejected dust . The featured image was captured last week from Texas and shows a green coma , a wandering blue-tinted ion tail likely deflected by our Sun's wind , and a slight anti-tail , all typical cometary attributes. The comet, visible with a telescope , passed its closest to the Sun in late October and will pass its closest to the Earth in mid-December, after which it will return to interstellar space and never return. Explore the Universe: Random APOD Generator 说明: 我们的太阳系有多典型? 研究刚刚掠过太阳系的彗星 3I/ATLAS[2] 为我们提供了线索。 先前已确认的星际访客包括一颗小行星[3]、一颗彗星[4]、一颗流星[5]以及一股以氢和氦为主的气体风[6]。 与太阳[7]系统[8]中的彗星相比,彗星3I/ATLAS[9]显得相对正常[10],这进一步证明了我们的太阳系[11]是一个相对典型的恒星系统。 例如,彗星3I/ATLAS的化学成分[12]与喷射出的尘埃[13]大致相同。 这张照片[14]是上周从德克萨斯州[15]拍摄的,照片显示了一颗彗星的绿色彗发[16],一条可能受到太阳风[17]偏转略带蓝色的离子尾[18],以及一条轻微的反尾[19],这些都是典型的彗星特征。 这颗彗星可以用望远镜[20]观测,于十月底经过了距离太阳最近的位置,并将于12月中旬经过距离地球最近的位置,之后它将返回星际空间[21],并且永远不会再回来。
探索宇宙: 随机 APOD 产生器[22]
明日的图片: active galaxy[23]
Authors & editors: Robert Nemiroff[24] (MTU[25]) & Jerry Bonnell[26] (UMCP[27])
NASA Official: Amber Straughn Specific rights apply[28].
NASA Web Privacy[29], Accessibility[30], Notices[31];
A service of: ASD[32] at NASA[33] / GSFC[34],
NASA Science Activation[35]
& Michigan Tech. U.[36]
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[37]
[1]https://www.instagram.com/dwj85
[3]https://en.wikipedia.org/wiki/1I/%CA%BBOumuamua
[4]http://apod.nasa.gov/apod/ap220305.html
[5]https://www.npr.org/2022/04/14/1092869771/interstellar-meteor-hit-earth-in-2014
[6]https://sci.esa.int/web/ulysses/-/35853-the-flow-of-interstellar-helium-in-the-solar-system
[7]http://apod.nasa.gov/apod/ap090207.html
[8]http://apod.nasa.gov/apod/ap200606.html
[9]https://en.wikipedia.org/wiki/3I/ATLAS
[10]https://www.skyatnightmagazine.com/news/3i-atlas-not-aliens
[11]https://science.nasa.gov/solar-system/solar-system-facts/
[13]http://apod.nasa.gov/apod/ap231126.html
[14]https://app.astrobin.com/i/jtmq82
[15]https://en.wikipedia.org/wiki/Texas
[16]https://www.science.org/content/article/why-do-some-comets-glow-green
[17]https://science.nasa.gov/sun/what-is-the-solar-wind/
[18]https://astronomy.swin.edu.au/cosmos/c/Cometary+Gas+Tail
[19]https://en.wikipedia.org/wiki/Comet_tail#Anti-tail
[20]https://1funny.com/wp-content/uploads/2010/12/dog-telescope.jpg
[21]http://apod.nasa.gov/apod/ap241222.html
[22]https://apod.nasa.gov/apod/random_apod.html
[23]http://apod.nasa.gov/apod/ap251202.html
[24]http://www.phy.mtu.edu/faculty/Nemiroff.html
[26]https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
[28]http://apod.nasa.gov/apod/lib/about_apod.html#srapply
[29]https://www.nasa.gov/about/highlights/HP_Privacy.html
[30]https://www.nasa.gov/general/accessibility/
[31]https://www.nasa.gov/privacy/
[32]https://astrophysics.gsfc.nasa.gov/
[34]https://www.nasa.gov/centers/goddard/
[35]https://science.nasa.gov/learners
[37]mailto:alfred@ncku.edu.tw
http://apod.nasa.gov/apod/ap251201.html
http://sprite.phys.ncku.edu.tw/astrolab/mirrors/apod/ap251201.html