Line of apsides

{
  "id": "MLC-T-MET-006974",
  "term": "Line of apsides",
  "field": "Meteorology and atmospheric science",
  "definition": "The imaginary line connecting the two extreme points (apsides) of an elliptical orbit, such as the Earth's orbit around the Sun. These points are the perihelion (closest approach) and aphelion (farthest distance). The orientation of the line of apsides slowly precesses over thousands of years, influencing long-term climate cycles.",
  "url": "https://mlchart.com/terminology/meteorology/line-of-apsides/"
}