| Geyser | 1905-04-22 |
|---|---|
| King | 1909 |
| Values for Old Faithful Area | 1905-04-22 |
|---|---|
| Astronomical Twilight Begin | 03:38 |
| Nautical Twilight Begin | 04:19 |
| Civil Twilight Begin | 04:57 |
| Sunrise | 05:27 |
| Sunset | 19:15 |
| Civil Twilight End | 19:46 |
| Nautical Twilight End | 20:24 |
| Astronomical Twilight End | 21:05 |
| Moon Illumination | 89.41% |