VariousWords beta
Related Terms:
Noun
Definition: The optical effect where, when certain wavelengths (not in the spectrum of visible light) are examined, the edge of the disk of a star appears brighter than the center of the disk.
VariousWords beta
Definition: The optical effect where, when certain wavelengths (not in the spectrum of visible light) are examined, the edge of the disk of a star appears brighter than the center of the disk.