What is the middle layer of the sun's atmosphere?
The middle layer is called as the Chromosphere.
Chromosphere literally means sphere of color. It is the middle layer and around
It is an irregular layer and its temperature lies between
Chromosphere also have two layers:
These layers just show us the location where they belong.
The Upper Chromosphere is near to the Corona, the third layer.
The Lower Chromosphere is near to the Photosphere, the first layer.
And note that we are taking these layers from deep to the top most part of the sun. Take a look at the picture to understand better.