| Geyser | 1939-09-28 |
|---|---|
| No reports yet |
| Values for Old Faithful Area | 1939-09-28 |
|---|---|
| Astronomical Twilight Begin | 04:39 |
| Nautical Twilight Begin | 05:14 |
| Civil Twilight Begin | 05:47 |
| Sunrise | 06:16 |
| Sunset | 18:11 |
| Civil Twilight End | 18:40 |
| Nautical Twilight End | 19:14 |
| Astronomical Twilight End | 19:48 |
| Moon Illumination | 99.9% |