APOD251216 澳大利亚上空的仙女座与红色精灵
澳大利亚上空的仙女座与红色精灵
图像提供与版权: JJ Rao[1]
英文原文:Explanation: What’s happening over that tree? Two very different things. On the left is the Andromeda galaxy , an object that is older than humanity and will last billions of years into the future. Andromeda ( M31 ) is similar in size and shape to our own Milky Way Galaxy . On the right is a red sprite , a type of lightning that lasts a fraction of a second and occurs above violent thunderstorms . Red sprites were verified as real atmospheric phenomena only about 35 years ago. The tree in the center is a boab , which may live for as long as a thousand years. Boab trees grow naturally in Australia and Africa and are known for being able to store large amounts of water: up to 100,000 liters. The featured image was captured last month near Derby in Western Australia . 说明: 这棵树上方发生了什么事?两种截然不同的景象。 左侧是仙女座星系[2],这个天体比人类[3]还古老,并将持续存在数十亿年。仙女座星系(M31[4])在大小和形状上都与我们的银河系[5]相似。 右侧是一个红色精灵[6],这是一种持续时间极短,仅为几分之一秒的闪电[7],通常发生在剧烈雷暴[8]上方。红色精灵[9]大约在35年前才被证实[10]是一种真实的大气现象[11]。 中间的树是澳洲猴面包树(当地人称boab)[12],其寿命可达千年之久。猴面包树自然生长于澳大利亚[13]和非洲[14],以其强大的储水能力而闻名,储水量可达10万公升。 这张主题图像[15]拍摄于上个月,地点在西澳大利亚[16]的德比[17]附近。
明日的图片: Soul Queen[18]
Authors & editors: Robert Nemiroff[19] (MTU[20]) & Jerry Bonnell[21] (UMCP[22])
NASA Official: Amber Straughn Specific rights apply[23].
NASA Web Privacy[24], Accessibility[25], Notices[26];
A service of: ASD[27] at NASA[28] / GSFC[29],
NASA Science Activation[30]
& Michigan Tech. U.[31]
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[32]
[1]https://www.instagram.com/nature.by.jj
[2]https://en.wikipedia.org/wiki/Andromeda_Galaxy
[3]https://en.wikipedia.org/wiki/Timeline_of_human_evolution
[5]https://science.nasa.gov/resource/the-milky-way-galaxy/
[6]http://apod.nasa.gov/apod/ap210104.html
[7]https://www.lightningmaps.org/
[8]http://apod.nasa.gov/apod/ap170226.html
[9]http://apod.nasa.gov/apod/ap231002.html
[10]https://media.tenor.com/ogsH7Ailje8AAAAe/cat-funny-cat.png
[12]https://en.wikipedia.org/wiki/Adansonia_gregorii
[13]https://en.wikipedia.org/wiki/Australia
[14]https://en.wikipedia.org/wiki/Africa
[15]https://www.instagram.com/p/DPvsritieGH/
[16]https://en.wikipedia.org/wiki/Western_Australia
[17]https://youtu.be/XTjuah-w1Og
[18]http://apod.nasa.gov/apod/ap251217.html
[19]http://www.phy.mtu.edu/faculty/Nemiroff.html
[21]https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
[23]http://apod.nasa.gov/apod/lib/about_apod.html#srapply
[24]https://www.nasa.gov/about/highlights/HP_Privacy.html
[25]https://www.nasa.gov/general/accessibility/
[26]https://www.nasa.gov/privacy/
[27]https://astrophysics.gsfc.nasa.gov/
[29]https://www.nasa.gov/centers/goddard/
[30]https://science.nasa.gov/learners
[32]mailto:alfred@ncku.edu.tw
http://apod.nasa.gov/apod/ap251216.html
http://sprite.phys.ncku.edu.tw/astrolab/mirrors/apod/ap251216.html