Monday 6 May 2019

Coronal Holes and Bright Points 4th May

Whilst this may appear to be a seemingly innocuous region of the sun with little or nothing happening it actually tells a story of features not seen in visible light.  The two bright points mark the boundary of a coronal hole.  A coronal hole has open magnetic field lines, and at it's boundary the sun has closed magnetic field lines, this produces a magnetic potential which gives the possibility of activity forming on the boundary line.  While not ephemeral regions, these bright points represent an area where magnetic field lines are emanating from the surface of the sun.  Taken with the Coronado SM90 double stacked with the Daystar Quark along with the FLIR GH3 ICX814 camera.