Astronomy View all facts Glossary Help |
abstraction > mathematical concept > number > quantity > solid angle > isoplanatic patch |
isoplanatic patch comparison table |
Subject | is a kind of | has definition |
---|---|---|
solid angle | quantity | A measure of the angular size of an extended object, equal to the area it subtends on the surface of a sphere of unit radius. |
isoplanatic patch | solid angle | The angular region on the sky over which the wavefront correction applied by an adaptive optics system remains valid. It is relatively small and therefore a nearby reference star is also required. |
Up: solid angle