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
Kira (given name) Kira (given name) Kira is a mostly feminine name of multiple origins and meanings. The feminine form is pronounced or . It might be a feminine form of the name Kiran, pronounced . Kiran is of Hindi and Sanskrit origin, meaning "beam of light". Besides Sanskrit, there might be other etymologies from Egyptian, where the word Ki-Ra means "like Ra", or Persian. Due to the Greek interpretation of the Persian king's name Kourosh (کوروش, "Kūrosh") as Κύρος ("Kýros") – which was obviously modeled after the Greek word κύριος ("kýrios" "lord"), the feminine form being κυρία ("kyría") – Kyra (or Kira)