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Geyser1991-08-16
Blue Mud Steam Vent 1200
Echinus0918, 1017, 1120, 1224, 1330, 1433, 1532
Emerald Spring 1200
Morning0728, 1100, 1457, 1855, 2230
Yellow Funnel Spring 1200
Values for Old Faithful Area1991-08-16
Astronomical Twilight Begin04:34
Nautical Twilight Begin05:17
Civil Twilight Begin05:55
Sunrise06:27
Sunset20:28
Civil Twilight End20:59
Nautical Twilight End21:38
Astronomical Twilight End22:20
Moon Illumination40.46%

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