Posted on Friday, August 22, 2014
Here's an image of the Sun in Hydrogen-Alpha on August 22nd, 2014, taken with a Canon EOS 500D camera through a Coronado SolarMax II telescope. For the full disk image ISO 1600 and exposure 1/400s, and for the inset picture of the active region in the middle of the disk ISO 1600 and exposure 1/250s. I had to use a high ISO setting in order to capture the images quickly, as the sky was cloudy with clouds moving very fast.
In the inset you can see the larger sunspot - AR2146 and the spot nearby is part of the group AR2148 and the bright spot just coming into view in the lower right-hand edge is AR2149, that produced an M3-class flare yesterday and poses a threat for future ones, with even the possibility of an X-class flare.
In the inset you can see the larger sunspot - AR2146 and the spot nearby is part of the group AR2148 and the bright spot just coming into view in the lower right-hand edge is AR2149, that produced an M3-class flare yesterday and poses a threat for future ones, with even the possibility of an X-class flare.
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| Sun in H-Alpha on August 22,2014. Credit: Kadri Tinn |
Labels: astrophotography, h-alpha, pictures, sun, sunspot