| Geyser | 1961-09-13 |
|---|---|
| No reports yet |
| Values for Old Faithful Area | 1961-09-13 |
|---|---|
| Astronomical Twilight Begin | 04:20 |
| Nautical Twilight Begin | 04:56 |
| Civil Twilight Begin | 05:30 |
| Sunrise | 05:59 |
| Sunset | 18:38 |
| Civil Twilight End | 19:07 |
| Nautical Twilight End | 19:42 |
| Astronomical Twilight End | 20:18 |
| Moon Illumination | 9.32% |