Shell star variables. Pleione and Gamma Cassiopeiae itself are both variable stars that have intermittent shell episodes where strong shell features appear in the spectrum and the brightness increases or decreases significantly. At other times the shell is not detectable in the spectrum, and even the emission lines may disappear. Shell star A shell star is a star having a spectrum that shows extremely broad absorption lines, plus some very narrow absorption lines. They typically also show some emission lines, usually from the Balmer series but occasionally of other lines. The broad absorption lines are due to rapid rotation of the photosphere,
Emilia (given name) Emilia (given name) Emilia is a feminine given name of Romanic origin. The name is found all over Europe and the Americas. The corresponding masculine name is Emil or Emilio. Emilia is also referenced as the Italian form of the English name, Emily. Emilia is a feminine given name derived from "Aemilia", the feminine form of the Latin nomen "Aemilius". The name is likely derived from the same root as the Latin word "aemulus", which means to rival, excel, or emulate, but this may be a folk etymology. Although similar Germanic names like Amalia may appear to be related to