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Geyser1981-08-02
Blue Mud Steam Vent 1200
Echinus1036:45, 1047:20 min, 1055:00, 1101:30, 1135 min, 1145 min, 1153 min, 1200, 1453 min, 1459, 1649, 1744 min, 1754 min, 1801
Morning1022 ?, 2321
Pequito 1900
UNNG-NBK-8 1200
Valentine1340
Whirligig1315, 1356, 1512, 1544
Values for Old Faithful Area1981-08-02
Astronomical Twilight Begin04:09
Nautical Twilight Begin04:56
Civil Twilight Begin05:38
Sunrise06:11
Sunset20:47
Civil Twilight End21:20
Nautical Twilight End22:02
Astronomical Twilight End22:49
Moon Illumination5.25%

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