| Geyser | 1982-08-26 |
|---|---|
| Morning | 1826 |
| Values for Old Faithful Area | 1982-08-26 |
|---|---|
| Astronomical Twilight Begin | 04:52 |
| Nautical Twilight Begin | 05:31 |
| Civil Twilight Begin | 06:08 |
| Sunrise | 06:38 |
| Sunset | 20:11 |
| Civil Twilight End | 20:41 |
| Nautical Twilight End | 21:18 |
| Astronomical Twilight End | 21:57 |
| Moon Illumination | 48.38% |