| Geyser | 1991-02-09 |
|---|---|
| No reports yet |
| Values for Old Faithful Area | 1991-02-09 |
|---|---|
| Astronomical Twilight Begin | 05:53 |
| Nautical Twilight Begin | 06:27 |
| Civil Twilight Begin | 07:01 |
| Sunrise | 07:31 |
| Sunset | 17:43 |
| Civil Twilight End | 18:13 |
| Nautical Twilight End | 18:47 |
| Astronomical Twilight End | 19:21 |
| Moon Illumination | 25.57% |