| Geyser | 1981-02-23 |
|---|---|
| No reports yet |
| Values for Old Faithful Area | 1981-02-23 |
|---|---|
| Astronomical Twilight Begin | 05:33 |
| Nautical Twilight Begin | 06:07 |
| Civil Twilight Begin | 06:40 |
| Sunrise | 07:10 |
| Sunset | 18:03 |
| Civil Twilight End | 18:32 |
| Nautical Twilight End | 19:06 |
| Astronomical Twilight End | 19:39 |
| Moon Illumination | 82.71% |