| Geyser | 1948-08-26 |
|---|---|
| Morning | 0805 |
| Values for Old Faithful Area | 1948-08-26 |
|---|---|
| Astronomical Twilight Begin | 03:52 |
| Nautical Twilight Begin | 04:31 |
| Civil Twilight Begin | 05:08 |
| Sunrise | 05:39 |
| Sunset | 19:10 |
| Civil Twilight End | 19:41 |
| Nautical Twilight End | 20:18 |
| Astronomical Twilight End | 20:57 |
| Moon Illumination | 65.02% |