Wednesday 23 May 2018

Mid Disk in Sodium Light - 22nd May

Whilst superficially similar to the white light image this mid disk shot taken in sodium light is quite different.  White light with a narrowband filter shows the edges of granules well, it is like desiccation cracks in a dried lake bed.   In sodium the view has more depth, like you are looking into the chromosphere more.  It is more reminiscent of mammatus clouds.  I need to clean the dust bunnies for the next time, but i'm pretty pleased with the view through the 60mm f6 scope.  Looking carefully in the middle of the field of view are some small dark pores; in CaK and Ha there is a region of turbulent plage, from relic active regions from rotations past.  This was taken with my new Daystar Sodium Quark and the PGR Chameleon 3 camera.