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,
Gautam (given name) Gautam (given name) The name Gautam (also transliterated as Gautama or Gauthama and a vrddhi patronymic of Gotama) is one of the ancient Indian names and is derived from the Sanskrit roots "gŐ(गः)" and "tama (तम)". "Tama" means "darkness" and "gŐ" means inter alia "bright light". Together, they indicate the one, who dispels darkness (ignorance) by his brilliance (spiritual knowledge) and Knowledge(Wisdom). The name "Gautam" is a masculine name. The feminine counterpart is known as "Gautami". Credited to the great sage, a descendent of Mahaṛṣi Āngira, the name "Gautam" might have come into limelight first during the Vedic period. There