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Geyser1964-06-21
Bear Den1500
Dark Cavern 1500
Echinus0941, 1240, 1412, 1646
Values for Old Faithful Area1964-06-21
Astronomical Twilight Begin02:09
Nautical Twilight Begin03:13
Civil Twilight Begin04:01
Sunrise04:38
Sunset20:11
Civil Twilight End20:48
Nautical Twilight End21:37
Astronomical Twilight End22:40
Moon Illumination87.72%

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