| Geyser | 1931-01-16 |
|---|---|
| No reports yet |
| Values for Old Faithful Area | 1931-01-16 |
|---|---|
| Astronomical Twilight Begin | 06:13 |
| Nautical Twilight Begin | 06:47 |
| Civil Twilight Begin | 07:23 |
| Sunrise | 07:56 |
| Sunset | 17:10 |
| Civil Twilight End | 17:42 |
| Nautical Twilight End | 18:18 |
| Astronomical Twilight End | 18:53 |
| Moon Illumination | 5.97% |