Mon, Oct 21, 8:39 PM CDT

Solar Storm

Bryce Atmosphere/Mood posted on Nov 01, 2018
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Description


Solar Storm A solar flare is a sudden flash of increased brightness on the Sun, usually observed near its surface and in close proximity to a sunspot group. Powerful flares are often, but not always, accompanied by a coronal mass ejection. Even the most powerful flares are barely detectable in the total solar irradiance. Solar flares occur in a power-law spectrum of magnitudes; an energy release of typically 1020 joules of energy suffices to produce a clearly observable event, while a major event can emit up to 1025 joules. Flares eject clouds of electrons, ions, and atoms through the Sun's corona into outer space, and also emit radio waves. If ejection is in the direction of the Earth, particles associated with this disturbance can penetrate into the upper atmosphere (the ionosphere) and cause bright auroras, and may even disrupt long range radio communication. It usually takes a day or two for the solar ejecta to reach Earth. Flares also occur on other stars, where the term stellar flare applies. On July 23, 2012, a massive, potentially damaging, solar storm (solar flare, coronal mass ejection and electromagnetic radiation) barely missed Earth. According to NASA, there may be as much as a 12% chance of a similar event occurring between 2012 and 2022. ____________________________________________ Tempête Solaire Une éruption solaire ou tempête solaire est un événement primordial de l'activité du Soleil. La variation du nombre d'éruptions solaires permet de définir un cycle solaire d'une période moyenne de 11,2 ans. Elle se produit périodiquement à la surface de la photosphère et projette au travers de la chromosphère des jets de matière ionisée qui se perdent dans la couronne à des centaines de milliers de kilomètres d'altitude. Elle est provoquée par une accumulation d'énergie magnétique dans des zones de champs magnétiques intenses, au niveau de l'équateur solaire, probablement à la suite d'un phénomène de reconnexion magnétique. Les éruptions solaires suivent trois stades, chacun d'eux pouvant durer de quelques secondes à quelques heures selon l'intensité de l'éruption. Durant le stade précurseur, l'énergie commence à être libérée sous la forme de rayons X. Puis les électrons, protons et ions accélèrent jusqu'à approcher la vitesse de la lumière lors du stade impulsif. Le plasma se réchauffe rapidement, passant de quelque 10 millions à 100 millions de kelvins. Une éruption donne non seulement un flash de lumière visible et une projection relativement dirigée dans l'espace circum-stellaire de plasma, mais émet également des radiations dans le reste du spectre électromagnétique : des rayons gamma aux ondes radio, en passant bien sûr par les rayons X. Le stade final est le déclin, pendant lequel des rayons X mous sont à nouveau les seules émissions détectées. Du fait de ces émissions de plasma, certaines éruptions solaires qui atteignent la Terre peuvent perturber les transmissions radioélectriques terrestres (orage magnétique) et provoquent l'apparition des aurores polaires en entrant en interaction avec le champ magnétique terrestre et la haute atmosphère.

Comments (22)


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Kordouane

12:52PM | Thu, 01 November 2018

Très bien imagé et expliqué, bravo 🌟

)

jendellas

12:52PM | Thu, 01 November 2018

Very interesting & amazing image.

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soffy

1:11PM | Thu, 01 November 2018

Wonderful Bryce work,MU:))*****

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Jean_C

1:57PM | Thu, 01 November 2018

Superbe image et des infos très intéressantes!

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miwi

4:22PM | Thu, 01 November 2018

Robot.jpg And super Info,excellent done!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

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QuietRiot

6:19PM | Thu, 01 November 2018

You do know that Doctor Who is going to come bursting out of that . At least we can dream that he/she is still real enough to save the world.

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Richardphotos

7:55PM | Thu, 01 November 2018

stellar creation

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Glendaw

8:52PM | Thu, 01 November 2018

Outstanding image, and render !

Thanks for sharing the background information.

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RodS Online Now!

9:59PM | Thu, 01 November 2018

Excellent work!

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eekdog Online Now!

12:05AM | Fri, 02 November 2018

Very cool!!image.jpg

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BryceHoro

2:51AM | Fri, 02 November 2018

Very well done depiction of such an event. I remember a few instances when satellite telecommunication was impaired, usually one polarisation only.

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Leije

11:43AM | Fri, 02 November 2018

Splendide !

)

DukeNukem2005

12:00PM | Fri, 02 November 2018

It is very beautiful and very nice!

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anitalee

3:25PM | Fri, 02 November 2018

Beautiful

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goodoleboy

6:40PM | Fri, 02 November 2018

If a solar flare ever hits us dead on, then there will be hell to pay.Radiant.jpg

)

Radar_rad-dude

2:01AM | Sat, 03 November 2018

I guess things could go very bad for satellite transmissions and earthly communications when that happens! I'm surprised it doesn't happen more often! Very fine image and most informative descriptive! Thanks much!

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pchef

2:55AM | Sun, 04 November 2018

excellent travail

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giareg

3:55AM | Sun, 04 November 2018

Excellent!!!!!

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ia-du-lin

4:29AM | Sun, 04 November 2018

very nice work

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blankfrancine

5:14AM | Sun, 04 November 2018

Powerful imagery!

)

Eugenius

7:11PM | Sun, 04 November 2018

That's awesome work. Really well done.

)

Drakkendark

3:52PM | Tue, 05 February 2019

Cool work.


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