| Geyser | 1977-10-04 |
|---|---|
| No reports yet |
| Values for Old Faithful Area | 1977-10-04 |
|---|---|
| Astronomical Twilight Begin | 05:48 |
| Nautical Twilight Begin | 06:22 |
| Civil Twilight Begin | 06:56 |
| Sunrise | 07:25 |
| Sunset | 18:58 |
| Civil Twilight End | 19:27 |
| Nautical Twilight End | 20:01 |
| Astronomical Twilight End | 20:35 |
| Moon Illumination | 60.69% |