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Geyser1987-08-23
Blue Mud Steam Vent 1200
Dark Cavern 1200
Monarch 1200
Puff-n-Stuff 1200
Sunday 1200
Yellow Funnel Spring 1200
Values for Old Faithful Area1987-08-23
Astronomical Twilight Begin04:46
Nautical Twilight Begin05:27
Civil Twilight Begin06:04
Sunrise06:35
Sunset20:16
Civil Twilight End20:47
Nautical Twilight End21:24
Astronomical Twilight End22:05
Moon Illumination1.47%

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