at night
You can see the chromosphere during a total eclipse.
Chromosphere and corona
chromosphere
ChRoMoSpHeRe
Considering the solar atmosphere to have three layers (photosphere, chromosphere, and corona), the "middle" would be the chromosphere.
At a total solar eclipse.
spicules
You can see the corona and chromosphere.
You can see the chromosphere during a total eclipse.
Photosphere is what we see most of the time, but you can also see the Chromosphere during a solar eclipse.
I guess you mean only during a total eclipse of the Sun. At that time we can see the chromosphere and the corona. The outermost layer is the corona.
That is the "Chromosphere."
chromosphere
The sun's atmosphere, or the chromosphere and the corona, can be seen with the unaided eye only during a total solar eclips.
chromosphere
Chromosphere and corona
Chromosphere and corona