| Geyser | 1940-10-20 |
|---|---|
| No reports yet |
| Values for Old Faithful Area | 1940-10-20 |
|---|---|
| Astronomical Twilight Begin | 05:08 |
| Nautical Twilight Begin | 05:41 |
| Civil Twilight Begin | 06:15 |
| Sunrise | 06:45 |
| Sunset | 17:31 |
| Civil Twilight End | 18:00 |
| Nautical Twilight End | 18:34 |
| Astronomical Twilight End | 19:08 |
| Moon Illumination | 86.24% |