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Geyser1991-07-27
Echinus0850, 0938, 1120, 1210 A, 1310, 1410, 1510, 1605
Values for Old Faithful Area1991-07-27
Astronomical Twilight Begin03:57
Nautical Twilight Begin04:47
Civil Twilight Begin05:30
Sunrise06:04
Sunset20:55
Civil Twilight End21:28
Nautical Twilight End22:11
Astronomical Twilight End23:02
Moon Illumination99.78%

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