| Geyser | 1991-05-06 |
|---|---|
| No reports yet |
| Values for Old Faithful Area | 1991-05-06 |
|---|---|
| Astronomical Twilight Begin | 04:07 |
| Nautical Twilight Begin | 04:53 |
| Civil Twilight Begin | 05:34 |
| Sunrise | 06:06 |
| Sunset | 20:32 |
| Civil Twilight End | 21:05 |
| Nautical Twilight End | 21:46 |
| Astronomical Twilight End | 22:32 |
| Moon Illumination | 57.48% |