Spring break X-rays

 Solar System, Sun  Add comments
Mar 232019
 

So far, 2019 has proven to be fairly quiet on the solar front. 67% of the days so far have seen a Sun without any sunspots. This past week there was an uptick in solar activity when a small sunspot group (AR2736) formed and then grew to a respectable size. GOES-15’s SXI (Solar X-ray Imager) instrument registered numerous class B flares and several class C flares yesterday.

Active Region 2736 [(V)C:690×4.483ms]

This hydrogen-alpha image of the entire solar disk shows an additional much smaller active region (AR2735) trailing AR2736. This area does not have a sunspot but presents itself as a bright area (plage). There is a small dark filament associated with AR2735 as well as a couple of additional filaments toward the top of the image.
 

[(V)C:450×0.948ms]

 Posted by at 09:27

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