Interessante und großartige Sterne - Sammelsurium
15.07.2011 um 00:14Anzeige
und dabei ist dieser gigantische nebel nur ein kleines wölkchen unter vielen in unserer galaxie, ...Oh, Yeah!
..schon irre diese welt
erstaunt mich immer wieder aufs neue
Alan used a filter that lets through only a very narrow wavelength of light emitted by hydrogen (called Hα for those of you keeping track at home), so this tracks the activity of gas on the solar surface. He also inverts the image of the solar disk (makes it a negative) to increase contrast. Somehow this adds a three-dimensional quality to the picture, and reveals an amazing amount of texture. I swear I had a rug in my bedroom growing up that was this texture (though somewhat cooler and less burny).http://blogs.discovermagazine.com/badastronomy/2011/03/08/seriously-jaw-dropping-picture-of-the-sun/ (Archiv-Version vom 23.07.2011)
The scene-stealer is that detached prominence off to the left. That’s the leftover material ejected from the Sun by an erupting sunspot (you can see other sunspots in the picture as well). The gas is ionized — a plasma — and so it’s affected by magnetic fields. The material follows the magnetic field of the Sun in the explosion, lifting it off the surface and into space. Sometimes it falls back, and sometimes it leaves the Sun entirely.