| Geyser | 1981-08-25 |
|---|---|
| Echinus | 1703:42, 1756:54, 1850:42, 1941:16, 2032:18, 2122:47, 2214:12, 2306:53 |
| Morning | 0129, 1114, 1815 |
| Values for Old Faithful Area | 1981-08-25 |
|---|---|
| Astronomical Twilight Begin | 04:50 |
| Nautical Twilight Begin | 05:30 |
| Civil Twilight Begin | 06:07 |
| Sunrise | 06:38 |
| Sunset | 20:12 |
| Civil Twilight End | 20:42 |
| Nautical Twilight End | 21:19 |
| Astronomical Twilight End | 21:59 |
| Moon Illumination | 21.59% |