| Geyser | 1981-10-12 |
|---|---|
| No reports yet |
| Values for Old Faithful Area | 1981-10-12 |
|---|---|
| Astronomical Twilight Begin | 05:58 |
| Nautical Twilight Begin | 06:32 |
| Civil Twilight Begin | 07:05 |
| Sunrise | 07:34 |
| Sunset | 18:44 |
| Civil Twilight End | 19:13 |
| Nautical Twilight End | 19:47 |
| Astronomical Twilight End | 20:21 |
| Moon Illumination | 97.66% |