Which region of the sun brightest in X-ray and UV images?

Answer 1

The region of the Sun that is brightest in X-ray and ultraviolet (UV) images is typically the corona, especially during solar flares and in active areas known as sunspots. These regions exhibit higher temperatures and greater magnetic activity, resulting in enhanced emissions of X-rays and UV radiation. Specifically, the brightest areas are often associated with coronal holes and active regions where magnetic field lines are concentrated.