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Old 07-July-2005, 01:10 AM
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Psi-less Psi-less is offline
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Location: Olympia,WA
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Quote:
Originally Posted by Michael Mozina
I tend to agree. Most of the photos I have presented are from the TRACE and SOHO websites. My tax dollars helped pay for them.
It's always good to seek permission. And I'm pretty, reasonably sure you don't pay taxes to Japan too, do you?

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Well, you folks keep saying this alright, but I've yet to see you actually demonstrate that visible light is coming from that hole. I see ENERGY in the form of types of photons coming from that hole, but not visible light.
Go here.
If you look at the center photo at the top of the page, the picture was taken with a Calcium-K filter. As they point out in the third paragraph, this filter allows light from the visible spectrum, but reduces the glare from unfiltered light. I guess sunspots must give off visible light then.

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What I'm more curious about however is the UMBRA underneath the penumbral filaments. What lights the filaments, and why does the light end underneath this layer in these photos?
As has been explained before, the light doesn't "end", it's just harder to see.

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If this was some sort of black body affect, I'd expect the SIDES of the penumbral filaments to extend all the way to the core. I don't see that. I see a disctict LAYER involved, with a distict bottom to this layer that starts to shine, and a distinct top.
What you see may not be what you get. Observation is a fine thing, but humans have a long history of trying to see patterns where there aren't any (like faces in clouds). It's also difficult to discern raised areas from depressed ones in a 3D object photographed head on. I've seen high altitude photos where you'd be hard-pressed to determine if a feature was a canyon or a mountain range--some of the early Mars photos come to mind.

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I'm talking about the pattern it makes in the top of the penumbral filaments. The upper layer is flared outward, in making concave pattern in the penumbral filament layer. The upper areas are push out further than the lower portion. The UMBRA begins at a very specific depth in this sunspot. Why? Why does the light start there at that point, and not further down?
You might Google on "Wilson Effect", at least that's what's coming to mind for the change in width of a penumbra. I'm pooped and need to take a nap or get grumpy. Again, you're using words like "depth"--is it deeper or is it higher? :wink:

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Whereas I'm suppose to ACCEPT that somehow the gas model has been proven?
Well, that's how science works. Someone presents a model that best fits the evidence and can be used to make predictions. As new info becomes available, the existing model gets tweaked or tossed. But, there's going to have to be some pretty good hard evidence to do either.

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Why? Why is their an "umbra" at all? Why isn't it lit the whole way down to the core if this is black body radiation? Why as different at the base of penumbral filaments from the umbra?
Because that's what it is by definition (at least, according to the OED, since ca. 1788). You might as well ask why do dogs have noses? Because that's what we call the wet, rubbery bit on the front of their faces. Again, please do take a look at some of the sites folks have given you. Having a language in common makes communication a whole lot easier.

[remainder put off until after I snooze]

Psi-less
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