All Questions
Tagged with the-sun solar-flare
21 questions
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92
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Where do these materials on the Sun come from, if not nothingness?
In this video, I see that for hours, it seems that the flow keeps going from the 11h direction to the Sun's surface - while there looks like nothing is coming to the top of the loop to provide a ...
- 403
6
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1
answer
491
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Where do Coronal Mass Ejections go?
Due to magnetic fluctuations in the Sun's corona, the Sun produces Coronal Mass ejections (CMEs).
Where does the matter from these CMEs go if they don't hit any celestial object? Are they visible from ...
- 139
4
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1
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5k
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What would be the effect of a large solar flare on motor vehicles?
With the solar cycle now leading to an increase in flare activity, one naturally starts to think the effects of a large solar flare heading this way.
While major flares like the Carrington Event are ...
- 143
6
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1
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60
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What online tools are available to investigate and classify solar eruptions?
I was just casually browsing when I came across a link about at recent solar flare. So I went to investigate at SpaceWeather. There it was stated:
Looking further down the page it seem to say that ...
- 235
5
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1
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95
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Strength of the relationship between very large solar flares, coronal mass ejections, and solar proton events?
In the years 774-775 and 993-994, there were large peaks in Earth's atmospheric radiocarbon (14C) concentration. While the cause was initially disputed, Mekhaldi et al.'s 2015 study of annually ...
- 151
2
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1
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332
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Is it fair to describe a solar flare as a big lightning strike on the sun?
Solar flares and lightning strikes are both kinds of electric discharges.
A lightning strike is a sudden discharge of electrical energy between an electrically charged cloud and another object, like ...
- 121
2
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1
answer
130
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Physical properties of the stellar corona?
I am after the basic physical properties of the corona of a star, here some questions for which I would like to have an answer, even only for a subset of them:
I know some things about the corona of ...
- 5,657
5
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1
answer
264
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What could be the cause of solar "campfires"?
NASA/ESA Solar Orbiter mission just released its first images. They show an ubiquitous feature: miniature flares called "campfires", much smaller than solar flares.
(click to enlarge)
A ...
- 1,959
1
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1
answer
46
views
Any active solar X-ray imager in orbit?
NOAA GOES-14 & 15 went very recently in storage mode. With those also went the solar X-ray imagers (SXI), as GOES-16 & 17 do not have such instruments on board. Hence, my question:
Are there ...
- 124
2
votes
1
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231
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Does Earth's magnetic field become stronger when a solar flare hits?
This curiosity arises as follows: when ejecta from a strong solar flare hits Earth, will the Earth somehow counter its impact with a stronger magnetic field.
Or, earth's magnetic field as limited ...
- 231
1
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1
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103
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Is there a plausible causal mechanism to explain why the Sun would be heating up faster/ sooner than we thought? Question for a novel [closed]
I am writing a novel about what it will be like on earth 500 or so years before the death of our Sun. The Sun is heating up gradually and one day that will negatively affect life on Earth. I know that ...
- 13
3
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1
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90
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Is it possible for a solar flare in one star to influence the chances of a solar flare in another star?
Can a solar flare reach far enough to travel from one ordinary star to another? If so, how can that solar flare affect the following star?
7
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1
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308
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Difference in creation of solar flares and CME?
What is the difference in the creation process of solar flares and CME (coronal mass ejections)? How do they relate to sunspots and coronal holes?
Here there are some good explanations about the ...
- 399
7
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1
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165
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What forces expelled these huge clouds, then blocked further progress, yet allowed it to maintain its threads?
From Wikipedia and NASA:
Caption: NASA: S74-15583
(July 1973) --- A huge solar eruption can be seen in this Spectroheliogram obtained during the Skylab 3 mission by the Extreme Ultraviolet ...
- 30.7k
6
votes
2
answers
231
views
What triggers solar flares?
The sun is a big ball of hot plasma which contains free electrons. However, how does the absence of metallic elements in the sun generate the magnetic field to orchestrate these free electrons to ...
- 2,511
9
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1
answer
307
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How likely is it that the Sun will destroy our electric society?
Given the studies of the Sun and similar stars and the most impressive understanding of its physics, is there any kind of probability distribution for its dangerous behavior? There are also some ...
- 11.5k
9
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2
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689
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Typical wavelength of solar flare
I read that solar flares are customarily viewed in H-alpha light, as a temporary brightening of a small portion of chromosphere.
What all can be interpreted from this? Is it because, energy of the ...
- 341
5
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1
answer
134
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Spectra of electromagnetic radiation emitted during solar flare
During solar flare, electromagnetic energy is released at a wide range of wavelengths but the most dominating are x-rays and extreme ultraviolet rays. Why is that intensity of these wavelengths is ...
- 341
5
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2
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174
views
How does solar activity (e.g. flares, coronal mass ejections) change over the life cycle of a Sun-like star?
As a Sun-like star is born from a collapsed nebula and generates energy by nuclear fusion some of that energy is converted to magnetic fields which fuel solar activity. How does that activity evolve ...
- 1,154
16
votes
1
answer
526
views
How do large solar flares compare to flares on other stars?
Solar flares are violent releases of solar magnetic energy. Other stars are also known to have magnetic fields, in some cases much stronger than the Sun. How do the largest stellar flares compare to ...
- 1,154
17
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2
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669
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What is the largest recorded solar flare?
For the purposes of this question I would interpret the word "recorded" as loosely as possible meaning that historic records such as ice cores or tree rings would count. Also what effect did such a ...
- 1,154