Solid angle

{
  "id": "MLC-T-CHM-010988",
  "term": "Solid angle",
  "field": "Chemistry",
  "definition": "A measure of the extent of a cone-like region in three-dimensional space, subtended by an object at a point. It is defined as the area of the projection of the object onto a unit sphere centered at the point, divided by the square of the sphere's radius. The SI unit for solid angle is the steradian (sr).",
  "subject": "Physical and Biophysical Chemistry",
  "see_also": [
    "apex current",
    "steradian"
  ],
  "references": [
    "Green Book, 2nd ed., p. 11 (https://goldbook.iupac.org/files/pdf/green_book_2ed.pdf)",
    "PAC, 1996, 68, 957. 'Glossary of terms in quantities and units in Clinical Chemistry (IUPAC-IFCC Recommendations 1996)' on page 992 (https://doi.org/10.1351/pac199668040957)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/solid-angle/"
}