Daily Archives: May 15, 2014

Coronal Hole


It doesn’t appear the solar wind coming from this coronal hole is going to be of any concern to us..

The image makes for an interesting desktop, get yours at the NASA website.

Here’s the scoop from NASA:

A coronal hole, almost square in its shape, is one of the most noticeable features on the Sun of late (May 5-7, 2014). A coronal hole is an area where high-speed solar wind streams into space. It appears dark in extreme ultraviolet light as there is less material to emit in these wavelengths. Inside the coronal hole you can see bright loops where the hot plasma outlines little pieces of the solar magnetic field sticking above the surface. Because it is positioned so far south on the Sun, there is less chance that the solar wind stream will impact us here on Earth.