Granules

{
  "id": "MLC-T-MET-006029",
  "term": "Granules",
  "field": "Meteorology and atmospheric science",
  "definition": "Small, transient convective cells visible on the Sun's photosphere, appearing as bright, polygonal areas separated by darker, narrow lanes. Each granule is the top of a convection cell where hot plasma rises from the solar interior, cools at the surface, and then sinks back down in the darker intergranular lanes. A single granule has a diameter of about 1,500 kilometers and a lifespan of 8 to 20 minutes.",
  "url": "https://mlchart.com/terminology/meteorology/granules/"
}