« observatories list
| Country | United States |
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| Latitude | 19° 49' 33.38" N |
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| Longitude | 155° 28' 29.61" W |
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| Elevation | 4139m |
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| Other names | Hawaii Mauna Kea Keck I |
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| Light pollution | very low (1/14) |
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| Light pollution history | 2006-2024: all measurements very low (1/14) |
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| Limiting magnitude | 6.8 |
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| Maps (open on google) |
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{"aliases":["Hawaii Mauna Kea Keck I"],"elevation":4139,"latitude":19.825939,"longitude":-155.474892,"name":"Keck I","timezone":"Pacific\/Honolulu","lightpollution":1,"country":"United States","lightpollutionhistory":[1,1,1,1,1]}