Gran Sasso stargazing forecast — Saturday, August 15

Best observing window tonight

Sat 11:00 p.m. – Sun 8:00 a.m. (10h, 2% mean cloud)

Astronomical night

Sat 10:07 p.m. → Sun 8:13 a.m.

Moon

Waxing crescent · 7% illuminated

Mean cloud (during night)

2%   (min 0%)

Site

Gran Sasso e Monti della Laga is a central Apennine national park where the Campo Imperatore plateau reaches 2,100 m. INFN's underground lab is here, and the plateau is a classic Italian astro-tourism spot.

Drive from Toronto: ≈ 1.5 h from Rome via the A24 to L'Aquila and up to Campo Imperatore.

Best time of year: June–October for the Campo Imperatore road; lower valleys observe year-round.

Citations & data sources

• Open-Meteo Forecast API (cloud, humidity, wind, visibility)
• Open-Meteo astronomical data (sunrise, sunset, moon)
• Bortle scale reference for site darkness
• Editorial guide for Gran Sasso: /sites/gran-sasso-np.txt
• Structured site data: /sites/gran-sasso-np.json
• Live MCP server (AI agents): https://koohxdehsweadgdegrly.supabase.co/functions/v1/mcp

This is a build-time snapshot — the live forecast at https://ontarionightsky.com/?site=gran-sasso-np updates continuously.