| Geyser | 1981-04-03 |
|---|---|
| No reports yet |
| Values for Old Faithful Area | 1981-04-03 |
|---|---|
| Astronomical Twilight Begin | 04:18 |
| Nautical Twilight Begin | 04:55 |
| Civil Twilight Begin | 05:30 |
| Sunrise | 06:00 |
| Sunset | 18:53 |
| Civil Twilight End | 19:22 |
| Nautical Twilight End | 19:57 |
| Astronomical Twilight End | 20:34 |
| Moon Illumination | 3.53% |