| Geyser | 1940-07-22 |
|---|---|
| Ledge | 0500 |
| Values for Old Faithful Area | 1940-07-22 |
|---|---|
| Astronomical Twilight Begin | 02:48 |
| Nautical Twilight Begin | 03:40 |
| Civil Twilight Begin | 04:25 |
| Sunrise | 04:59 |
| Sunset | 19:59 |
| Civil Twilight End | 20:34 |
| Nautical Twilight End | 21:18 |
| Astronomical Twilight End | 22:10 |
| Moon Illumination | 91.84% |