Photosphere

{
  "id": "MLC-T-MET-002032",
  "term": "Photosphere",
  "field": "Meteorology and atmospheric science",
  "definitions": [
    "The visible surface of the Sun, from which most of its light is emitted. This layer is relatively thin, about 100 to 400 kilometers deep, and is characterized by a temperature range of approximately 4,500 to 6,000 Kelvin. Sunspots, which are cooler regions, are observed within the photosphere.",
    "The intensely bright portion of the sun visible to the unaided eye; the \"surface\" of the sun. Reaching temperatures estimated at about 11,000 degrees Fahrenheit, it is the portion of the sun's atmosphere which emits continuous electromagnetic radiation."
  ],
  "references": [
    "NWS Glossary"
  ],
  "url": "https://mlchart.com/terminology/meteorology/photosphere/"
}