Search results
- DictionaryPho·to·sphere/ˈfōdəˌsfir/
noun
- 1. the luminous envelope of a star from which its light and heat radiate.
The photosphere is a star's outer shell from which light is radiated. 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.
Photosphere is the visible layer of the Sun where most of its light reaches Earth directly. It has a granular structure, a temperature gradient, and a magnetic field that affects the chromosphere and the corona.
- Harold Zirin
Learn about the photosphere, the visible layer of the Sun that emits light and heat. Find out how sunspots, granulation, and solar flares affect the Sun and Earth.
Jun 21, 2022 · The photosphere is the lowest layer of the sun's atmosphere — the innermost layer we can observe directly. The term photosphere means "sphere of light" and is the layer where most of the sun's...
Aug 11, 2014 · Learn about the visible surface of the Sun, its features, and its rotation. See images and animations of sunspots, faculae, granules, and more.
Oct 10, 2012 · Learn about the structure and temperature of the Sun's layers, from the core to the corona. The photosphere is the deepest layer we can observe directly, with granulation and a temperature range of 6500 to 400 K.
Learn about the photosphere, the first and bottommost layer of the Sun’s atmosphere that radiates the light we see. Find out what features and phenomena occur in this thin layer, such as sunspots, solar flares, granules and convection cells.
