Hydrogen alpha filter image of sunspot groups AR3685 and AR3686

On 05/22/2024 10:30 am by David Hoskin| Halifax, Nova Scotia, Canada

This active region of the Sun contains sunspot groups AR3685 and AR3686, as well as a number of filaments.

Lunt 40mm solar scope, GSO 2.5x Barlow, Player One Apollo-M Mini, SkyWatcher EQ6R Pro.

Best 125 frames out of 2500 frames of SER video stacked with AutoStakkert, wavelets with Registax, other post-processing with Photoshop and MS Photo.