Black Country news and blogs Wednesday 15 August 2018
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Ha Full Disk 8th August

8 Aug 18

When spaceweather.

com says the sun is blank they need to look in Hydrogen Alpha wavelengths, there is plenty to see here; ex-active regions, plage, filaments and prominences. The sun is rarely quiet in Ha! Taken with a pair of double stacked 50mm Lunt etalons, a Coronado BF15 on a 60mm f6 scope with the PGR Chameleon 3 camera.


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