| Geyser | 1931-07-23 |
|---|---|
| No reports yet |
| Values for Old Faithful Area | 1931-07-23 |
|---|---|
| Astronomical Twilight Begin | 02:48 |
| Nautical Twilight Begin | 03:41 |
| Civil Twilight Begin | 04:25 |
| Sunrise | 04:59 |
| Sunset | 19:59 |
| Civil Twilight End | 20:33 |
| Nautical Twilight End | 21:18 |
| Astronomical Twilight End | 22:10 |
| Moon Illumination | 62.01% |