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Geyser1966-08-20
Cistern Spring 0800
Ebony1420
Echinus0801, 0909, 1017, 1123, 1230, 1340, 1447, 1554, 1704
Harding 1030-1320
Ledge0600 A
Steamboat 0800-1800
Values for Old Faithful Area1966-08-20
Astronomical Twilight Begin04:41
Nautical Twilight Begin05:22
Civil Twilight Begin06:00
Sunrise06:31
Sunset20:21
Civil Twilight End20:52
Nautical Twilight End21:30
Astronomical Twilight End22:11
Moon Illumination19.75%

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