Starry Dave's Window Sill Observatory

Sunspot 4374 on 17th February 2026

 Solar HA  Add comments
Feb 182026
 

This was the featured image on Spaceweather.com on 21.2.2026. Click here to read their technical description of what you are seeing.

Click image for original version. Then press F11 for full screen and Ctrl+wheel to zoom. 1800x real time.
 Posted by dwsubc at 1:54 pm

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  Solar Prominence 17th February 2026   3D Sunspot

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