Photosphere but more tenuous corona. Other "surface features" on the photosphere are solar flares and sunspots. 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
Hero (given name) Hero (given name) Hero is a given name of Ancient Greek origin meaning "hero." When occurring in English discussions of classical literature, it is sometimes transliterated as Hērō (Ancient Greek: Ἡρώ). The Ancient Greeks pronounced this name along the lines of /he.roː/ while present-day English speakers pronounce it /ˈhi.ɹoʊ/. A modern Greek version of the name is Iro (Ηρώ). In literature, female characters named Hero include one of the titular star-crossed lovers of the Ancient Greek myth Hero and Leander, a wronged bride-to-be in William Shakespeare's 1599 comedy "Much Ado About Nothing," and the protagonist of Georgette Heyer's 1944 Regency