| Term: | plage |
| Definition: |
On the Sun, an extended H-alpha emission feature of an active region that is seen from the time of emergence of the first magnetic flux until the widely scattered remnant magnetic fields merge with the background. Magnetic fields are more intense in plage, and temperatures are higher than in surrounding, quiescent regions. |
| Term: | plage |
| Definition: |
Visible and ultraviolet emissions from the photosphere,chromosphere and transition region. Plage are associated with concentrations of magnetic fields and form a part of the network of bright emissions that characterize the chromosphere. |
| Term: | plage |
| Definition: |