Sunday, 13 May 2018

Ha Full Disk - 13th May

Todays sun has all the hallmarks of our star heading into solar minimum.  Active regions are sparse, with AR12709 sitting very much geoeffective.  Flare activity is likely to be negligible from this region.  All the main active regions are now focused very much towards the solar equator, with filaments at polar latitudes in both hemispheres indicating a boundary of magnetic fields.  The 2 prominences looked very nice visually through the 80mm scope and the Quark.  This image was taken with the Lunt LS50 (single stack) at ~f13 using the PGR Chameleon 3 camera.