Active Region 2674
Taken by Stuart Green on August 30, 2017 @
Preston, Lancashire, UK
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Details:
The new active region (AR2674) emerging around the eastern limb is an impressively large sunspot group. I captured this image in hydrogen alpha light (656.3nm) from my back yard in the UK a few minutes before the Sun disappeared from view, as it was getting late in the day. Given its size, it's an ideal target for amateur solar astronomers.
Photographer's website:
http://https://www.flickr.com/photos/solarcarbon60/?saved=1
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