| Geyser | 1948-08-11 |
|---|---|
| Morning | 0952 |
| Values for Old Faithful Area | 1948-08-11 |
|---|---|
| Astronomical Twilight Begin | 03:26 |
| Nautical Twilight Begin | 04:10 |
| Civil Twilight Begin | 04:49 |
| Sunrise | 05:21 |
| Sunset | 19:35 |
| Civil Twilight End | 20:06 |
| Nautical Twilight End | 20:46 |
| Astronomical Twilight End | 21:30 |
| Moon Illumination | 44.29% |