☁️ Cloud Cover
< 20% for clear views of the night sky
💧 Humidity
< 70% to prevent dew and haze
💨 Wind Speed
< 20 km/h for stable tracking
🌧️ Precipitation
None - equipment must stay dry!
👁️ Visibility
> 10 km for atmospheric clarity
🌙 Moon Phase
< 50% illumination for deep sky