{
  "name": "星空撮影用500ルール＆NPF計算機",
  "short_name": "星",
  "description": "星が流れないための最大露光時間を計算します。古典的な500ルールと、現代のセンサーに最適化された高精度なNPFモデルに対応しています。",
  "start_url": "/ja/utilities/categories/astronomy/500-rule-calculator/",
  "scope": "/ja/utilities/categories/astronomy/500-rule-calculator/",
  "icons": [
    {
      "src": "/images/utilities/star-exposure-calculator.webp",
      "sizes": "512x512",
      "type": "image/webp",
      "purpose": "any"
    }
  ],
  "theme_color": "#0f172a",
  "background_color": "#0f172a",
  "display": "standalone",
  "orientation": "portrait"
}