An Etymological Dictionary of Astronomy and Astrophysics

A → Be star with → forbidden lines in emission in its spectrum. B[e] stars show large → infrared excess due to → circumstellar dust emission. See also → supergiant B[e] star, → pre-main sequence B[e] star, → compact planetary nebula B[e] star, → symbiotic B[e] star, and → unclassified B[e] star.

See also: B, referring to the spectral type; e for emission lines, brackets for distinction from Be; → star.