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Bortle 1 ★ Premier Global Astronomical Reserve 📍 Hawaii, United States

Mauna Kea Observatories

19.8207000° N, -155.4681000° E • Elevation: 4205m

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🌌 About This Observing Location

Dormant volcano rising 13,796 feet above the Pacific Ocean, placing it above 40 percent of Earth's atmosphere with unsurpassed seeing.

Bortle Scale Class 1
Elevation 4205 m
Latitude 19.821°
Longitude -155.468°

☁️ 4-Night Stargazing Cloud Forecast

Updated hourly via Open-Meteo
Thu, Oct 15
100%
Avg Night Cloud
Sunset: 17:58
Sunrise: 06:16
Overcast Sky
Fri, Oct 16
100%
Avg Night Cloud
Sunset: 17:57
Sunrise: 06:17
Overcast Sky
Sat, Oct 17
100%
Avg Night Cloud
Sunset: 17:56
Sunrise: 06:17
Overcast Sky
Sun, Oct 18
79%
Avg Night Cloud
Sunset: 17:56
Sunrise: 06:17
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

Astronotify continuously computes SGP4 high-precision orbital chords for the International Space Station passing across the Sun and Moon.

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