{
  "name": "星空摄影 500 法则及 NPF 曝光计算器",
  "short_name": "星5法N曝",
  "description": "计算星空摄影中不产生星轨的最大曝光时间。支持经典的 500 法则以及针对现代传感器的高精度 NPF 模型。",
  "start_url": "/zh/utilities/categories/astronomy/500-rule-calculator/",
  "scope": "/zh/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"
}