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Geyser1977-07-15
Blue Mud Steam Vent 1200
Echinus1027
Valentine0840 ? A
Values for Old Faithful Area1977-07-15
Astronomical Twilight Begin03:36
Nautical Twilight Begin04:31
Civil Twilight Begin05:17
Sunrise05:52
Sunset21:05
Civil Twilight End21:40
Nautical Twilight End22:26
Astronomical Twilight End23:22
Moon Illumination1.19%

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