Skip to comments.Astronomy Picture of the Day -- Orange Sun Sparking
Posted on 05/05/2014 9:06:14 PM PDT by SunkenCiv
Explanation: Our Sun has become quite a busy place. Taken only two weeks ago, the Sun was captured sporting numerous tumultuous regions including active sunspot regions AR 2036 near the image top and AR 2036 near the center. Only four years ago the Sun was emerging from an unusually quiet Solar Minimum that had lasted for years. The above image was recorded in a single color of light called Hydrogen Alpha, inverted, and false colored. Spicules cover much of the Sun's face like a carpet. The gradual brightening towards the Sun's edges is caused by increased absorption of relatively cool solar gas and called limb darkening. Just over the Sun's edges, several filamentary prominences protrude, while prominences on the Sun's face are seen as light streaks. Possibly the most visually interesting of all are the magnetically tangled active regions containing relatively cool sunspots, seen as white dots. Currently at Solar Maximum -- the most active phase in its 11-year magnetic cycle, the Sun's twisted magnetic field is creating numerous solar "sparks" which include eruptive solar prominences, coronal mass ejections, and flares which emit clouds of particles that may impact the Earth and cause auroras. One flare two years ago released such a torrent of charged particles into the Solar System that it might have disrupted satellites and compromised power grids had it struck planet Earth.
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[Credit & Copyright: Alan Friedman (Averted Imagination)]
Whew. Hurts my eyes.
I'll take the cool blue Cherenkov radiation.
Inverted it. I sort of glossed over that part.
Wow, looks more like a spore or something with the image filtered that way.
Actually I can see that it’s slightly darker in the center than at the edges. This is what you’d expect to see . The darkening actually occurs because the edges are scattered by more solar atmosphere, even though you can’t see the atmosphere itself in that wavelength.
That picture reminded me of Anita Bryant.
She was arguably the first victim of the Lavender Mafia.
Isn’t that strange how our minds work?
That view always looks like a sponge toy my cat digs out from under the bed covered in lint & dirt ;)
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