{
  "siteId": "rhoen-dsr",
  "siteName": "Rhön Biosphere Dark Sky Reserve",
  "region": "Central Germany",
  "bortle": 3,
  "generatedAt": "2026-08-15T02:05:09.266Z",
  "tonight": {
    "date": "2026-08-15T20:40",
    "nightStartIso": "2026-08-15T20:40",
    "nightEndIso": "2026-08-16T06:10",
    "moonPhase": "Waxing crescent",
    "moonIlluminationPct": 7,
    "verdict": "No-go",
    "verdictReason": "Overcast: mean cloud 87%, minimum 44%. Sit this one out.",
    "confidence": "High",
    "meanCloudPct": 87,
    "minCloudPct": 44,
    "bestWindow": null
  },
  "citations": [
    {
      "label": "Open-Meteo Forecast API (cloud, humidity, wind, visibility)",
      "url": "https://open-meteo.com/en/docs"
    },
    {
      "label": "Open-Meteo astronomical data (sunrise, sunset, moon)",
      "url": "https://open-meteo.com/en/docs"
    },
    {
      "label": "Bortle scale reference for site darkness",
      "url": "https://en.wikipedia.org/wiki/Bortle_scale"
    }
  ]
}