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Geyser1974-07-31
Africa 0920
Constant1245, 1343, 1517, 1629
Echinus0900, 1026, 1131, 1256, 1541
Ledge0600 A, 2105
Little Whirligig1138, 1335, 1550
Valentine1207
Whirligig1043, 1243, 1350, 1423, 1510, 1605, 1651
Values for Old Faithful Area1974-07-31
Astronomical Twilight Begin04:05
Nautical Twilight Begin04:53
Civil Twilight Begin05:35
Sunrise06:08
Sunset20:50
Civil Twilight End21:23
Nautical Twilight End22:05
Astronomical Twilight End22:54
Moon Illumination92.5%

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