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
Louie (given name) Louie (given name) Louie is a moderately common given name, related to the more common name Louis. It originated in the United Kingdom (where "Louis" is pronounced ) as a more regularly-spelled version without a silent ⟨s⟩. In 2011, it was the 74th most common forename for births in England and Wales, with Louis only slightly more common at 68th. In the United States, "Louis" (there pronounced ) is far more common. The name is unisex; it is usually considered a masculine given name, as a derivation of Louis, but is occasionally given to girls as a diminutive of Louise.