Apr 022026
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Mar 222026
Mar 122026
These 3 sunspots were captured on 6th March 2026. Their inner cores are all pulsating with ripples spreading out from the centres. This phenomenon is called umbral flashes. This was the featured image on Spaceweather.com on March 13th 2026.
Mar 082026
The first movie is of sunspot 4378 and was featured on spaceweather.com because it illustrated umbral flashes.
Click each image for larger version. Then press F11 for full screen and Ctrl+wheel to zoom.
Mar 012026
Click on the videos to see the original large version and press F11 for full screen.
Feb 272026
Feb 232026
Feb 222026
This is a picture of sunspot 4374 converted to a 3D object by showing dark areas lower than bright areas. Sunspots are lower than the solar surface as described by the Wilson effect.
Click here to open the 3D viewer and then drag the mouse to spin it around and spin mouse wheel to zoom. Looks best in full screen mode.
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.
Feb 172026
