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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
Wed, Nov 4
1%
Avg Night Cloud
Sunset: 18:04
Sunrise: 07:08
Optimal Sky
Thu, Nov 5
13%
Avg Night Cloud
Sunset: 18:03
Sunrise: 07:09
Optimal Sky
Fri, Nov 6
38%
Avg Night Cloud
Sunset: 18:03
Sunrise: 07:09
Fair Sky
Sat, Nov 7
100%
Avg Night Cloud
Sunset: 18:02
Sunrise: 07:10
Overcast 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.