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Bortle 1 ★ IDA International Dark Sky Park (Gold Tier) 📍 Texas, United States

Big Bend National Park

29.2500000° N, -103.2500000° E • Elevation: 850m

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🌌 About This Observing Location

Has the lowest measure of light pollution of any National Park in the lower 48 states, offering Bortle 1 skies along the Rio Grande.

Bortle Scale Class 1
Elevation 850 m
Latitude 29.25°
Longitude -103.25°

☁️ 4-Night Stargazing Cloud Forecast

Updated hourly via Open-Meteo
Fri, Oct 16
99%
Avg Night Cloud
Sunset: 19:21
Sunrise: 07:55
Overcast Sky
Sat, Oct 17
88%
Avg Night Cloud
Sunset: 19:20
Sunrise: 07:55
Overcast Sky
Sun, Oct 18
80%
Avg Night Cloud
Sunset: 19:19
Sunrise: 07:56
Overcast Sky
Mon, Oct 19
16%
Avg Night Cloud
Sunset: 19:18
Sunrise: 07:56
Optimal Sky

✨ Darkness & Sky Quality

Class 1: Excellent truly dark sky.

Naked-Eye Limiting Mag: 7.6 – 8.0 mag
Milky Way Visibility: Brilliant with complex structures
Zodiacal Light: Striking & yellowish

🛰️ ISS Transits & Flyovers

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