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
A Star Is Torn During the closing credits, Homer teaches Lisa the jazz hands routine, which he taught Cameron earlier, for her next performance. Maggie joins in as well, though does stumble at first before picking up the routine. A Star Is Torn "A Star Is Torn" is the eighteenth episode of "The Simpsons"<nowiki>'</nowiki> sixteenth season. It first aired on the Fox network in the United States on May 8, 2005. Fantasia Barrino guest stars as Clarissa Wellington. After being unable to shop at the Kwik-E-Mart because it is being held up, Lisa suggests the Simpsons have a vegetarian meal with ingredients purchased from