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Bortle 2 ★ Dark Sky Discovery Core Site 📍 Carmarthenshire, Wales, United Kingdom

Llyn y Fan Fach (Black Mountain)

51.8790000° N, -3.7690000° E • Elevation: 510m

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🌌 About This Observing Location

Enchanting glacial tarn nestled beneath dramatic precipitous escarpments with virtually zero southern horizon light interference.

Bortle Scale Class 2
Elevation 510 m
Latitude 51.879°
Longitude -3.769°

☁️ 4-Night Stargazing Cloud Forecast

Updated hourly via Open-Meteo
Thu, Oct 15
100%
Avg Night Cloud
Sunset: 18:21
Sunrise: 07:39
Overcast Sky
Fri, Oct 16
83%
Avg Night Cloud
Sunset: 18:19
Sunrise: 07:41
Overcast Sky
Sat, Oct 17
57%
Avg Night Cloud
Sunset: 18:17
Sunrise: 07:42
Fair Sky
Sun, Oct 18
58%
Avg Night Cloud
Sunset: 18:14
Sunrise: 07:44
Fair Sky

✨ Darkness & Sky Quality

Class 2: Truly dark site with negligible glow.

Naked-Eye Limiting Mag: 7.1 – 7.5 mag
Milky Way Visibility: Brilliant with complex structures
Zodiacal Light: Distinct in spring/autumn

🛰️ ISS Transits & Flyovers

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Track this spot to compute personalized solar & lunar transit predictions.