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Geyser1981-08-10
Blue 1200
Blue Mud Steam Vent 1200
Dabble 1200
Dark Cavern 1200
Echinus1051 min, 1100 min, 1107, 1243 min, 1252 min, 1259, 1632 min, 1638
Fearless 1200
Little Whirligig 1200
Morning0923, 1900
Mystic Spring 1200
Pequito 1200
Pinwheel 1200
Rubble 1200
Valentine1421
Whirligig1349, 1423
Yellow Funnel Spring 1200
Values for Old Faithful Area1981-08-10
Astronomical Twilight Begin04:24
Nautical Twilight Begin05:08
Civil Twilight Begin05:48
Sunrise06:20
Sunset20:36
Civil Twilight End21:08
Nautical Twilight End21:48
Astronomical Twilight End22:32
Moon Illumination72.36%

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