Embed Notice

HTML Code

<blockquote style="position: relative; padding-left: 55px;"><section><a href="https://fosstodon.org/users/AkaSci/statuses/112425316136152798">AkaSci 🛰️ (akasci@fosstodon.org)'s status on Sunday, 12-May-2024 17:45:56 JST</a><a href="https://fosstodon.org/@AkaSci" title="akasci@fosstodon.org"><img src="https://gnusocial.jp/avatar/20805-48-20221219024513.webp" width="48" height="48" alt="AkaSci 🛰️" style="position: absolute; left: 0; top: 0;">AkaSci 🛰️</a><div><a href="https://fosstodon.org/@AkaSci/112425291449688823" rel="in-reply-to">in reply to</a></div></section><article><p>Further reading on Aurora colors -<br><a href="https://www.lwpetersen.com/science-and-nature/what-causes-the-aurora/" rel="nofollow noreferrer">https://www.lwpetersen.com/science-and-nature/what-causes-the-aurora/</a><br><a href="https://atoptics.co.uk/blog/glowing-gases-aurorae/" rel="nofollow noreferrer">https://atoptics.co.uk/blog/glowing-gases-aurorae/</a><br><a href="https://www.researchgate.net/publication/233408329_The_Colors_of_the_Aurora" rel="nofollow noreferrer">https://www.researchgate.net/publication/233408329_The_Colors_of_the_Aurora</a><br><a href="https://auroraborealisobservatory.com/2020/11/24/have-you-ever-seen-blue-aurora-borealis/" rel="nofollow noreferrer">https://auroraborealisobservatory.com/2020/11/24/have-you-ever-seen-blue-aurora-borealis/</a><br><a href="https://www.nps.gov/articles/-articles-aps-v8-i1-c9.htm" rel="nofollow noreferrer">https://www.nps.gov/articles/-articles-aps-v8-i1-c9.htm</a><br><a href="https://en.wikipedia.org/wiki/Aurora" rel="nofollow noreferrer">https://en.wikipedia.org/wiki/Aurora</a><br><a href="http://ffden-2.phys.uaf.edu/webproj/212_spring_2015/Joyce_Dustin_Demientieff/joyce_dustindemientieff/colors.htmlhttp://ffden-2.phys.uaf.edu/webproj/212_spring_2015/Joyce_Dustin_Demientieff/joyce_dustindemientieff/colors.html" rel="nofollow noreferrer">http://ffden-2.phys.uaf.edu/webproj/212_spring_2015/Joyce_Dustin_Demientieff/joyce_dustindemientieff/colors.htmlhttp://ffden-2.phys.uaf.edu/webproj/212_spring_2015/Joyce_Dustin_Demientieff/joyce_dustindemientieff/colors.html</a></p><p>Note that 100 km is where space begins, aka the Kármán line. It is far above the highest clouds.</p><p><a href="https://fosstodon.org/tags/Aurora" rel="tag">#Aurora</a><br>28/n</p></article><footer><a rel="bookmark" href="https://gnusocial.jp/conversation/3073219#notice-6101923">In conversation</a><time datetime="2024-05-12T17:45:56+09:00" title="Sunday, 12-May-2024 17:45:56 JST">about 7 months ago</time> <span>from <span><a href="https://fosstodon.org/@AkaSci/112425316136152798" rel="external" title="Sent from fosstodon.org via ActivityPub">fosstodon.org</a></span></span><a href="https://fosstodon.org/@AkaSci/112425316136152798">permalink</a><h4>Attachments</h4><ol><li><label><a rel="external" href="https://gnusocial.jp/attachment/2625713">The layers of Earth's atmosphere with the Kármán line indicated (not to scale)</a></label><br><a href="https://cdn.fosstodon.org/media_attachments/files/112/425/496/899/492/160/original/a10937c72bc4c9d2.png" rel="external">https://cdn.fosstodon.org/media_attachments/files/112/425/496/899/492/160/original/a10937c72bc4c9d2.png</a></li><li><article><header><div>Domain not in remote thumbnail source whitelist: photos.smugmug.com</div><h5><a href="https://www.lwpetersen.com/science-and-nature/what-causes-the-aurora/">What Causes the Aurora</a></h5><div> from <span>Lee Petersen</span></div></header><div>A basic, yet comprehensive explanation of what causes the aurora. Tying together the solar wind, geomagnetic field, Van Allen belts, atomic energy states, and the electromagnetic spectrum.</div><footer></footer></article></li><li><article><header><div>Domain not in remote thumbnail source whitelist: mugshotbot-master.s3.eu-central-1.amazonaws.com</div><h5><a href="https://atoptics.co.uk/blog/glowing-gases-aurorae/">Glowing Gases - Aurorae</a></h5><div></div></header><div>This article explores the captivating nature of aurorae, explaining how the interaction of energetic particles with the Earth's upper atmosphere gives rise to these mesmerizing displays of vibrant colors. From the predominant green and red hues emitted by excited oxygen atoms to the faint contributions of nitrogen, this article delves into the beauty and complexity of these glowing gases.</div><footer></footer></article></li><li><label><a rel="external" href="https://gnusocial.jp/attachment/2625720">Untitled attachment</a></label><br></li><li><article><header><div>Domain not in remote thumbnail source whitelist: auroraborealisobservatory.com</div><h5><a href="https://auroraborealisobservatory.com/2020/11/24/have-you-ever-seen-blue-aurora-borealis/">Have you ever seen blue Aurora Borealis</a></h5><div> from <span>andershanssen@mac.com</span></div></header><div>Have you ever seen blue Aurora Borealis? When people think of the aurora, they generally picture green or purple. If you have never seen the</div><footer></footer></article></li><li><article><header><div>Domain not in remote thumbnail source whitelist: www.nps.gov</div><h5><a href="https://www.nps.gov/articles/-articles-aps-v8-i1-c9.htm">The Colors of the Aurora (U.S. National Park Service)</a></h5><div></div></header><div></div><footer></footer></article></li><li><article><header><div>Domain not in remote thumbnail source whitelist: upload.wikimedia.org</div><h5><a href="https://en.wikipedia.org/wiki/Aurora">Aurora</a></h5><div></div></header><div>An aurora (pl. aurorae or auroras),
also commonly known as the northern lights (aurora borealis) or southern lights (aurora australis), is a natural light display in Earth's sky, predominantly seen in high-latitude regions (around the Arctic and Antarctic). Auroras display dynamic patterns of brilliant lights that appear as curtains, rays, spirals, or dynamic flickers covering the entire sky.
Auroras are the result of disturbances in the Earth's magnetosphere caused by the solar wind. Major disturbances result from enhancements in the speed of the solar wind from coronal holes and coronal mass ejections. These disturbances alter the trajectories of charged particles in the magnetospheric plasma. These particles, mainly electrons and protons, precipitate into the upper atmosphere (thermosphere/exosphere). The resulting ionization and excitation of atmospheric constituents emit light of varying colour and complexity. The form of the aurora, occurring within bands around both polar regions, is also dependent on the amount of acceleration...</div><footer></footer></article></li><li><label><a rel="external" href="https://gnusocial.jp/attachment/2625724">Untitled attachment</a></label><br></li></ol></footer></blockquote>

Corresponding Notice

Embed this notice
AkaSci 🛰️ (akasci@fosstodon.org)'s status on Sunday, 12-May-2024 17:45:56 JST AkaSci 🛰️
in reply to
Further reading on Aurora colors -
https://www.lwpetersen.com/science-and-nature/what-causes-the-aurora/
https://atoptics.co.uk/blog/glowing-gases-aurorae/
https://www.researchgate.net/publication/233408329_The_Colors_of_the_Aurora
https://auroraborealisobservatory.com/2020/11/24/have-you-ever-seen-blue-aurora-borealis/
https://www.nps.gov/articles/-articles-aps-v8-i1-c9.htm
https://en.wikipedia.org/wiki/Aurora
http://ffden-2.phys.uaf.edu/webproj/212_spring_2015/Joyce_Dustin_Demientieff/joyce_dustindemientieff/colors.htmlhttp://ffden-2.phys.uaf.edu/webproj/212_spring_2015/Joyce_Dustin_Demientieff/joyce_dustindemientieff/colors.html
Note that 100 km is where space begins, aka the Kármán line. It is far above the highest clouds.
#Aurora
28/n
In conversationabout 7 months ago from fosstodon.orgpermalink
Attachments
1. The layers of Earth's atmosphere with the Kármán line indicated (not to scale)
  https://cdn.fosstodon.org/media_attachments/files/112/425/496/899/492/160/original/a10937c72bc4c9d2.png
2. Domain not in remote thumbnail source whitelist: photos.smugmug.com
  What Causes the Aurora
  from Lee Petersen
  A basic, yet comprehensive explanation of what causes the aurora. Tying together the solar wind, geomagnetic field, Van Allen belts, atomic energy states, and the electromagnetic spectrum.
3. Domain not in remote thumbnail source whitelist: mugshotbot-master.s3.eu-central-1.amazonaws.com
  Glowing Gases - Aurorae
  This article explores the captivating nature of aurorae, explaining how the interaction of energetic particles with the Earth's upper atmosphere gives rise to these mesmerizing displays of vibrant colors. From the predominant green and red hues emitted by excited oxygen atoms to the faint contributions of nitrogen, this article delves into the beauty and complexity of these glowing gases.
4. Untitled attachment
5. Domain not in remote thumbnail source whitelist: auroraborealisobservatory.com
  Have you ever seen blue Aurora Borealis
  from andershanssen@mac.com
  Have you ever seen blue Aurora Borealis? When people think of the aurora, they generally picture green or purple. If you have never seen the
6. Domain not in remote thumbnail source whitelist: www.nps.gov
  The Colors of the Aurora (U.S. National Park Service)
7. Domain not in remote thumbnail source whitelist: upload.wikimedia.org
  Aurora
  An aurora (pl. aurorae or auroras), also commonly known as the northern lights (aurora borealis) or southern lights (aurora australis), is a natural light display in Earth's sky, predominantly seen in high-latitude regions (around the Arctic and Antarctic). Auroras display dynamic patterns of brilliant lights that appear as curtains, rays, spirals, or dynamic flickers covering the entire sky. Auroras are the result of disturbances in the Earth's magnetosphere caused by the solar wind. Major disturbances result from enhancements in the speed of the solar wind from coronal holes and coronal mass ejections. These disturbances alter the trajectories of charged particles in the magnetospheric plasma. These particles, mainly electrons and protons, precipitate into the upper atmosphere (thermosphere/exosphere). The resulting ionization and excitation of atmospheric constituents emit light of varying colour and complexity. The form of the aurora, occurring within bands around both polar regions, is also dependent on the amount of acceleration...
8. Untitled attachment

Public

Embed Notice

HTML Code

Corresponding Notice