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Geyser1970-08-20
Bear Den0825
Castle0915
Echinus0855, 0922, 1010, 1151, 1239, 1451, 1550
Grand0720, 1435
Great Fountain0745, 1537
Lion0410 ie, 1228, 1405
Old Faithful0806 long, 0917 short, 1009 long, 1116 short, 1223 short, 1331 long, 1443 short, 1530 long, 1647 short, 1752 long, 1908 long, 2016 long
Riverside0750, 1420
Round0925
Values for Old Faithful Area1970-08-20
Astronomical Twilight Begin04:41
Nautical Twilight Begin05:22
Civil Twilight Begin06:00
Sunrise06:31
Sunset20:21
Civil Twilight End20:52
Nautical Twilight End21:30
Astronomical Twilight End22:11
Moon Illumination86.06%

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