| Geyser | 1911-06-11 |
|---|---|
| Steamboat | 0900 A |
| Values for Old Faithful Area | 1911-06-11 |
|---|---|
| Astronomical Twilight Begin | 02:12 |
| Nautical Twilight Begin | 03:13 |
| Civil Twilight Begin | 04:01 |
| Sunrise | 04:38 |
| Sunset | 20:07 |
| Civil Twilight End | 20:43 |
| Nautical Twilight End | 21:31 |
| Astronomical Twilight End | 22:33 |
| Moon Illumination | 99.66% |