| Geyser | 1959-07-22 |
|---|---|
| Morning | 1034 |
| Values for Old Faithful Area | 1959-07-22 |
|---|---|
| Astronomical Twilight Begin | 02:47 |
| Nautical Twilight Begin | 03:40 |
| Civil Twilight Begin | 04:24 |
| Sunrise | 04:58 |
| Sunset | 20:00 |
| Civil Twilight End | 20:34 |
| Nautical Twilight End | 21:19 |
| Astronomical Twilight End | 22:12 |
| Moon Illumination | 94.15% |