Pierre MarkuseIn this image taken by +Paul Stewart on December 3rd, 2016, you can see our Sun, imaged through a Hydrogen alpha filter (https://goo.gl/pvfxvf), with some small solar prominences extending outward.
Also visible are some dark filaments and bright plages. Read more on solar astronomy here:
http://www.skyandtelescope.com/observing/guide-to-observing-the-sun-in-h-alpha092321050923/
What is a solar prominence?
Solar prominences are gaseous features extending outward from the Sun's surface. They consist of hot ionized gases and reach from the Sun's photosphere (https://goo.gl/b3Jncm) up into the corona (https://goo.gl/XG45Tc). They extend over thousands, sometimes hundreds of thousands, of kilometers. More on solar prominences here:
https://en.wikipedia.org/wiki/Solar_prominence
Take a look here for a bigger 85,000-kilometer prominence:
https://plus.google.com/u/0/+PierreMarkuse/posts/18nbZxkKQvd?sfc=false
Interested in the Sun? Take a look here:
http://sdo.gsfc.nasa.gov/
http://www.swpc.noaa.gov/
Image credit: Sun in Ha, December 3rd, 2016 +Paul Stewart
https://goo.gl/F1Q7dQ CC BY 2.0 https://goo.gl/sZ7V7x
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