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Geyser1970-07-19
Bear Den1010, 1815
Castle0155, 1004
Dark Cavern1820
Echinus0945, 1030, 1135, 1225, 1325, 1425, 1613, 1810
Grand0110, 1215
Old Faithful0810 short, 0850 long, 1008 short, 1105 long, 1217 short, 1303 long, 1428 short, 1515 short, 1600 long, 1712 short, 1800 long, 1913 short, 1957 long
Riverside0132, 1406
Values for Old Faithful Area1970-07-19
Astronomical Twilight Begin03:42
Nautical Twilight Begin04:36
Civil Twilight Begin05:21
Sunrise05:56
Sunset21:02
Civil Twilight End21:37
Nautical Twilight End22:22
Astronomical Twilight End23:16
Moon Illumination99.75%

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