Lunar

{
  "id": "MLC-T-IND-003465",
  "term": "Lunar",
  "field": "Industrial and trades",
  "definition": "A measurement of distance, specifically the angular distance between the moon and another celestial body, used in celestial navigation to determine longitude at sea. The navigator measures the angle with a sextant and notes the precise time, then uses a nautical almanac to calculate the vessel's position. This method, known as the lunar distance method, was prevalent before the invention of accurate marine chronometers in the 18th century.",
  "subject": "Marine and shipyard",
  "translations": {
    "de": "Lunar",
    "es": "lunar",
    "fr": "lunaire"
  },
  "url": "https://mlchart.com/terminology/industrial/lunar/"
}