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Africa 1428,  1428-1436, 1436
Arsenic1325,  1428
Bear Den1120
Congress Pool 1800
Constant1140, 1432, 1531
Echinus0840, 1006, 1134, 1258, 1551, 1720
Emerald Spring 1800
Fireball1320 ie, 1404, 1418
Ledge 1800
Little Whirligig1040, 1300 ie, 1503
Moxie1418, 1436
Steamboat 1800
Whirligig1026, 1408
Values for Old Faithful Area1974-09-21
Astronomical Twilight Begin05:31
Nautical Twilight Begin06:06
Civil Twilight Begin06:40
Civil Twilight End19:52
Nautical Twilight End20:26
Astronomical Twilight End21:01
Moon Illumination30.08%

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