| Geyser | 1974-01-20 |
|---|---|
| No reports yet |
| Values for Old Faithful Area | 1974-01-20 |
|---|---|
| Astronomical Twilight Begin | 07:10 |
| Nautical Twilight Begin | 07:45 |
| Civil Twilight Begin | 08:21 |
| Sunrise | 08:53 |
| Sunset | 18:15 |
| Civil Twilight End | 18:47 |
| Nautical Twilight End | 19:23 |
| Astronomical Twilight End | 19:57 |
| Moon Illumination | 8.91% |