| Geyser | 1931-05-10 |
|---|---|
| No reports yet |
| Values for Old Faithful Area | 1931-05-10 |
|---|---|
| Astronomical Twilight Begin | 03:00 |
| Nautical Twilight Begin | 03:47 |
| Civil Twilight Begin | 04:29 |
| Sunrise | 05:02 |
| Sunset | 19:37 |
| Civil Twilight End | 20:10 |
| Nautical Twilight End | 20:51 |
| Astronomical Twilight End | 21:38 |
| Moon Illumination | 42.95% |