Photosphere Photosphere The photosphere is a star's outer shell from which light is radiated. The term itself is derived from Ancient Greek roots, φῶς, φωτός/"phos, photos" meaning "light" and σφαῖρα/"sphaira" meaning "sphere", in reference to it being a spherical surface that is perceived to emit light. It extends into a star's surface until the plasma becomes opaque, equivalent to an optical depth of approximately 2/3, or equivalently, a depth from which 50% of light will escape without being scattered. In other words, a photosphere is the deepest region of a luminous object, usually a star, that is transparent to photons of
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