| date | title | id |
|---|---|---|
2020-09-03 10:13:39 -0700 |
Scintillation (astronomy) |
2020-09-03t17-13-39z |
In astronomy, scintillation is the phenomenon in which celestial objects appear to twinkle, i.e. have random variations in their luminosity, when observed through a medium.
This is due to the turbulence in the earth's atmosphere (atmospheric scintillation), or due to turbulence in some other medium (such as the celestial body's own atmosphere) (astronomical scintillation)
Turbulence causes scintillation because it perturbs the otherwise flat wavefronts of light.