| Geyser | 1931-07-16 |
|---|---|
| No reports yet |
| Values for Old Faithful Area | 1931-07-16 |
|---|---|
| Astronomical Twilight Begin | 02:36 |
| Nautical Twilight Begin | 03:31 |
| Civil Twilight Begin | 04:17 |
| Sunrise | 04:52 |
| Sunset | 20:05 |
| Civil Twilight End | 20:40 |
| Nautical Twilight End | 21:26 |
| Astronomical Twilight End | 22:22 |
| Moon Illumination | 0.8% |