| Geyser | 1939-10-27 |
|---|---|
| No reports yet |
| Values for Old Faithful Area | 1939-10-27 |
|---|---|
| Astronomical Twilight Begin | 05:15 |
| Nautical Twilight Begin | 05:49 |
| Civil Twilight Begin | 06:23 |
| Sunrise | 06:53 |
| Sunset | 17:21 |
| Civil Twilight End | 17:51 |
| Nautical Twilight End | 18:25 |
| Astronomical Twilight End | 18:58 |
| Moon Illumination | 99.01% |