| Geyser | 1939-05-17 |
|---|---|
| No reports yet |
| Values for Old Faithful Area | 1939-05-17 |
|---|---|
| Astronomical Twilight Begin | 02:46 |
| Nautical Twilight Begin | 03:36 |
| Civil Twilight Begin | 04:20 |
| Sunrise | 04:54 |
| Sunset | 19:45 |
| Civil Twilight End | 20:19 |
| Nautical Twilight End | 21:02 |
| Astronomical Twilight End | 21:52 |
| Moon Illumination | 4.22% |