| Geyser | 1987-09-07 |
|---|---|
| No reports yet |
| Values for Old Faithful Area | 1987-09-07 |
|---|---|
| Astronomical Twilight Begin | 05:10 |
| Nautical Twilight Begin | 05:47 |
| Civil Twilight Begin | 06:23 |
| Sunrise | 06:52 |
| Sunset | 19:50 |
| Civil Twilight End | 20:19 |
| Nautical Twilight End | 20:54 |
| Astronomical Twilight End | 21:31 |
| Moon Illumination | 99.61% |