| Geyser | 1931-05-16 |
|---|---|
| No reports yet |
| Values for Old Faithful Area | 1931-05-16 |
|---|---|
| Astronomical Twilight Begin | 02:48 |
| Nautical Twilight Begin | 03:38 |
| Civil Twilight Begin | 04:21 |
| Sunrise | 04:55 |
| Sunset | 19:43 |
| Civil Twilight End | 20:17 |
| Nautical Twilight End | 21:00 |
| Astronomical Twilight End | 21:50 |
| Moon Illumination | 1.86% |