by MarkBour » Tue Dec 06, 2016 10:06 pm
I'd appreciate it if someone could help me better understand what I'm seeing in this gorgeous image. (It looks to the human eye almost like a fire, though I doubt it is even warm by Earth standards.)
First, I suppose the pixellation itself is a major artifact,
perhaps you professional imagers would refer to it that way, whereas one would assume the reality of the scene being captured would be smoothed. But I need no more explanation about that. Second, though, I think I see some other artifacts. There are a few bright dots that, because of their perfect vertical alignment I assume to be artifacts. Correct? There are also some dark (black?) dots, which are more closely-spaced and thus greater in number along another vertical line. Artifacts, I assume. What would cause either of these?
- Capture.JPG (13.3 KiB) Viewed 4862 times
Third, there is a very interesting shape at the lower left. It seems like it would not be an artifact. Shown in the excerpt here. Is that something interesting? (Does not appear to be Clark's monolith.)
More generally, I see the bright yellow shading in a ring, and I'm thinking that is the aurora itself. If that's the case, then it looks like there is a ridge of cloud around the aurora, with the aurora kind of painting itself along its inner wall. But would an IR image show us this? Is that indeed a doughnut-shaped cloud?
I'd appreciate it if someone could help me better understand what I'm seeing in this gorgeous image. (It looks to the human eye almost like a fire, though I doubt it is even warm by Earth standards.)
First, I suppose the pixellation itself is a major artifact, [i]perhaps[/i] you professional imagers would refer to it that way, whereas one would assume the reality of the scene being captured would be smoothed. But I need no more explanation about that. Second, though, I think I see some other artifacts. There are a few bright dots that, because of their perfect vertical alignment I assume to be artifacts. Correct? There are also some dark (black?) dots, which are more closely-spaced and thus greater in number along another vertical line. Artifacts, I assume. What would cause either of these?
[float=left][attachment=0]Capture.JPG[/attachment][/float]
Third, there is a very interesting shape at the lower left. It seems like it would not be an artifact. Shown in the excerpt here. Is that something interesting? (Does not appear to be Clark's monolith.)
More generally, I see the bright yellow shading in a ring, and I'm thinking that is the aurora itself. If that's the case, then it looks like there is a ridge of cloud around the aurora, with the aurora kind of painting itself along its inner wall. But would an IR image show us this? Is that indeed a doughnut-shaped cloud?