| Geyser | 1959-07-26 |
|---|---|
| Morning | 0905 |
| Values for Old Faithful Area | 1959-07-26 |
|---|---|
| Astronomical Twilight Begin | 02:54 |
| Nautical Twilight Begin | 03:45 |
| Civil Twilight Begin | 04:29 |
| Sunrise | 05:03 |
| Sunset | 19:56 |
| Civil Twilight End | 20:30 |
| Nautical Twilight End | 21:13 |
| Astronomical Twilight End | 22:04 |
| Moon Illumination | 62.51% |