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Geyser1973-04-17
Harding 1800
Ledge1205,  1800
Valentine1730 A
Values for Old Faithful Area1973-04-17
Astronomical Twilight Begin03:48
Nautical Twilight Begin04:27
Civil Twilight Begin05:04
Sunrise05:35
Sunset19:10
Civil Twilight End19:40
Nautical Twilight End20:17
Astronomical Twilight End20:57
Moon Illumination99.92%

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