| Geyser | 1987-03-27 |
|---|---|
| No reports yet |
| Values for Old Faithful Area | 1987-03-27 |
|---|---|
| Astronomical Twilight Begin | 04:34 |
| Nautical Twilight Begin | 05:10 |
| Civil Twilight Begin | 05:44 |
| Sunrise | 06:13 |
| Sunset | 18:43 |
| Civil Twilight End | 19:12 |
| Nautical Twilight End | 19:47 |
| Astronomical Twilight End | 20:23 |
| Moon Illumination | 6.28% |