Sunday, 4 March 2018

Ex-AR12699 Nothing More Than Decaying Plage - 4th March

Ex AR12699 made it's return over the weekend, however sadly activity in the region has decayed significantly, and despite hopes there would be some sunspots left all that has returned is an area of decaying plage.  This can be seen above in a crop from the latest SDO AIA1700 image.  Here on Earth observers should be able to detects hints of this in Ha and also CaK wavelengths, where at higher resolution in white light it may be possible to detect it too.  .