APOD250816 2025年英仙流星的酷炫动态GIF图像
[复制链接] 分享:2025年英仙流星的酷炫动态GIF图像
图像提供与版权[1]: Renaud & Olivier Coppe[2]
英文原文:Explanation: The camera battery died about 2am local time on August 12, while shooting in the bright moonlit skies from a garden in Chastre, Brabant Wallon, Belgium, planet Earth. But not before it captured the frames used to compose this cool animated gif of a brilliant Perseid meteor and a lingering visible trail known as a persistent train . The Perseid meteor, a fast moving speck of dust from the tail of large periodic Comet Swift-Tuttle , was heated to incandescence by ram pressure and vaporized as it flashed through the upper atmosphere at 60 kilometers per second . Compared to the brief flash of the meteor, its wraith-like trail really is persistent. A characteristic of bright meteors, a smoke-like persistent train can often be followed for many minutes wafting in the winds at altitudes of 60 to 90 kilometers. 说明: 于比利时瓦隆布拉省沙斯特尔镇的花园,拍摄[3]地球满是月华的夜空[4]时,相机的电池在当地时间8月12日凌晨2点左右耗尽。 不过在电池耗尽之前,相机已经取得用来制作这部酷炫动态GIF图像的多帧定格,用以呈现一颗明亮的英仙流星及其久现流星迹[5]。 英仙流星的本尊则是来自周期性斯威福·塔特彗星[6]彗尾的高速尘埃微粒,当它以每秒60公里的速度穿过地球高层大气时,发生汽化并受到冲压[7]的加热而白炽发光。 相较于流星亮闪的短暂,其幽灵般的流星迹有时可以流连良久。 而明亮流星的特征之一,是会在60到90公里的高空,留下烟雾般的久现流星迹,然后随风飘荡达数分钟。
明日的图片: cloudy skies[8]
Authors & editors: Robert Nemiroff[9] (MTU[10]) & Jerry Bonnell[11] (UMCP[12])
NASA Official: Amber Straughn Specific rights apply[13].
NASA Web Privacy[14], Accessibility[15], Notices[16];
A service of: ASD[17] at NASA[18] / GSFC[19],
NASA Science Activation[20]
& Michigan Tech. U.[21]
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> <br/> 编辑:<a href="mailto:alfred@ncku.edu.tw" style="color:gray;" target="_blank">陈炳志</a> 编辑:苏汉宗[22]
[1]http://apod.nasa.gov/apod/lib/about_apod.html#srapply
[2]https://app.astrobin.com/u/ren1450#gallery
[3]https://app.astrobin.com/u/ren1450?i=5p34ay#gallery
[5]http://apod.nasa.gov/apod/ap180817.html
[6]https://science.nasa.gov/solar-system/comets/109p-swift-tuttle/
[7]https://www.space.com/3113-meteors-meteor-showers-science.html
[8]http://apod.nasa.gov/apod/ap250817.html
[9]http://www.phy.mtu.edu/faculty/Nemiroff.html
[11]https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
[13]http://apod.nasa.gov/apod/lib/about_apod.html#srapply
[14]https://www.nasa.gov/about/highlights/HP_Privacy.html
[15]https://www.nasa.gov/general/accessibility/
[16]https://www.nasa.gov/privacy/
[17]https://astrophysics.gsfc.nasa.gov/
[19]https://www.nasa.gov/centers/goddard/
[20]https://science.nasa.gov/learners
[22]mailto:hantzong.su@gmail.com
http://apod.nasa.gov/apod/ap250816.html
http://sprite.phys.ncku.edu.tw/astrolab/mirrors/apod/ap250816.html
