Talk:Solar flare
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[edit] electro?
What is electro transmission?
[edit] Unhappy
I don't think there should be an image of a CME on the solar flares page, there is already enough confusion between these two phenomenen, when they are distinct events whcih are not directly related with each other. Any thoughs welcome. 13/02/2007
I totally agree. I think Coronal Mass Ejection, Solar Flare and Solar Energetic Particles should be better distinguished.USferdinand 19:08, 10 March 2007 (UTC)
[edit] Star Trek
Is the reference to the solar flare page on the Star Trek wiki really a relevant link here?
So how many REMs would a solar flare at, say X10, give you (or better yet a table/graph)? Or how much shielding would it take to protect an astronaut? How long are such events (ie: solar storms?) would an astronaut have to hide out in a protected area for 15 mins or 8 hours? How does electronics hold up?
~ender 2003-11-08 12:36:MST
The article says:
Based on the January 20 event, they may have as little as 15 minutes to do so.
what event was that? the link to the day article does not help, since there is no special event mentioned.
==
[edit] End of the world?
The End of civilization article lists "Giant solar flare fries the Earth" as one of the potential scenarios for our doom. Is that really possible? TheCoffee 6 July 2005 18:44 (UTC)
Highly unlikely, based on past performance. Generally as stars age flares get less energetic, and there seems in any case to be an energy limit. References available.
This article needs major enlargement. While it starts at the beginning and arrives at the present, it skips all the good stuff in between. What to do? I am a Wikipedia novice.
84.43.122.159
[edit] Image Source?
What is the source of the images, and should there be a direct link to the it? According to the annotations on the large image, they are taken from SoHo's instraments. Are we sure that NASA and not the ESA released the images?
[edit] Reverting vandalism
Remember to make sure you are indeed going to the last good version; the categories and interwiki links got lost in the shuffle from around 1 March 2006. I'll get around to this unless someone else wants to first. --Christopherlin 00:43, 29 March 2006 (UTC)
[edit] Needed
Does anyone have a site that lists major sun events like flares etc ? It would be helpful to include...
From http://sec.noaa.gov/sxi/latest.html on there are lists reachable for all minor and major events in the past <insert large number> years.
I am surprised that there is not more info on the 1 September 1859 solar flare, which apparently was one of the most powerful in recorded history. It is a prominent historical event; I also noticed that there is spare mention of it on the "sun spot" page either. Dru007 02:01, 21 October 2007 (UTC)
[edit] List of doomsday scenarios
Could use votes to save this article, thanks MapleTree 22:35, 28 September 2006 (UTC)
[edit] Power
Nasa says the power of a solar flare is equivalent to a billion megaton nuclear bombs, not a million as the original article stated.
http://news.com.com/NASA+launches+twin+robots+to+map+the+sun/2100-11397_3-6129678.html?tag=nefd.top
The largest flares apparently involve an energy of about 1026 Joules. Since a Megaton is roughly 4×1015 Joules, the largest flares involve about 25 billion Megatons of energy. By the way, this is energy, not power. References available.
This raises another question, more general and important for any substantial expansion/rewrite of this article (which it does need - who has time?), and possibly others. Who is the intended reader? Should he or she be spoken to in Joules or Megatons or coal-fired power stations? Some Wikipedia articles on Maths subjects, for example, are accessible to few people. This one should presumably be accessible to most people, but should it also be useful to people who know something already? Views would be helpful.
BodachMor 15:21, 6 December 2006 (UTC)
[edit] Gamma Ray Burst?!?!?!?!?!
I recently did a paper on Gamma Rays for my Physics class. Gamma Rays are emited during solar flares. What if a flare oringinating from the Sun emited a Gamma Ray burst? What if a nearby star, such as in the Andromeda Galaxy, was the origin of such a burst? I know about the catastophe that would result from such a cosmic incident, but how likely is something like this? In 2012, Solar Flare activity is supposed to reach a peak. Could a burst happen as a result of this? Please awnser!!! Thanks!!!
Is the first sentence right? What is the energy equivalent of a solar flare? I am not an expert, but it looks awfully high. I thought is was equivalent to millions of hydrogen bombs, not billions of nuclear bombs -- can someone check this?
The phrase Gamma_ray_burst refers to a particular sort of cosmic event, apparently producing most of its energy in the form of gamma-rays and apparently - so the Compton Observatory showed us in the early 1990's - at extragalactic distances and thus unspeakably luminous to be detectable at all. Solar flares emit gamma-rays but this doesn't mean we should call them Gamma-ray bursts and thus confuse them with something much further away and of a completely different physical nature. Flare gamma-rays are absorbed harmlessly by Earth's atmosphere. Don't lose any sleep over them!
BodachMor 15:34, 6 December 2006 (UTC)
[edit] Moreton wave
After seeing a news article about it, i created the article for Moreton wave, a wave caused by a solar flare, if anybody would like to see it and expand it. Thanks --AW 22:57, 8 December 2006 (UTC)
[edit] Dictionary.com
the information on wikipedia is far less compared to google of dictionary.com. u think they should put the latest news on solar flares and update it now and then and make it more colorful —The preceding unsigned comment was added by 71.249.16.74 (talk • contribs) 02:45, 15 December 2006 (UTC)
"Dr. Hans Zarkov, speaking from the International Solar Center in Zurich, Switzerland, predicts an above average solar flare production for 2007. He forecasts seven Categories M, five Zs, and four Bs. He recommends that the world be prepared to go underground for four hours during the worst of these storms....." Something like that, maybe? :)Student7 20:30, 16 December 2006 (UTC)
[edit] Solar flares can also cause blackouts, right?
Big enough solar flares can also cause power blackouts too. In northern areas like Canada, they have had blackouts because of solar flares.64.136.27.201 23:54, 15 December 2006 (UTC)
[edit] Energy equivalent?
The article says the energy of a solar flare is equivalent of billion megatons. Of what? TNT? And the source is? This site says they are equivalent "only" to a million megatons of TNT. That's 1000 times less. ---Majestic- 09:41, 20 May 2007 (UTC)
[edit] The picture at the top of the page
Isn't the picture at the top of the page a Solar Prominence rather than a Solar Flare?
Yes, it is, a better picture should be put there instead. I've been meaning to give a clean-up to the article for some time, but I never got around to do it... as soon as I find some time I'll try and do it. Definitely the introduction should be improved a lot. Gringo.ch 13:44, 30 May 2007 (UTC)
I replaced the picture with one really showing a solar flare.Gringo.ch 12:04, 13 June 2007 (UTC)
