| Geyser | 1931-07-06 |
|---|---|
| No reports yet |
| Values for Old Faithful Area | 1931-07-06 |
|---|---|
| Astronomical Twilight Begin | 02:20 |
| Nautical Twilight Begin | 03:21 |
| Civil Twilight Begin | 04:08 |
| Sunrise | 04:44 |
| Sunset | 20:10 |
| Civil Twilight End | 20:46 |
| Nautical Twilight End | 21:34 |
| Astronomical Twilight End | 22:34 |
| Moon Illumination | 65.9% |