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Geyser1967-08-21
Fan-Norris 1800
Mud Spring 1100-1715
Values for Old Faithful Area1967-08-21
Astronomical Twilight Begin04:43
Nautical Twilight Begin05:24
Civil Twilight Begin06:01
Sunrise06:32
Sunset20:20
Civil Twilight End20:51
Nautical Twilight End21:28
Astronomical Twilight End22:09
Moon Illumination98.68%

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