| Geyser | 1974-01-21 |
|---|---|
| No reports yet |
| Values for Old Faithful Area | 1974-01-21 |
|---|---|
| Astronomical Twilight Begin | 07:10 |
| Nautical Twilight Begin | 07:44 |
| Civil Twilight Begin | 08:20 |
| Sunrise | 08:52 |
| Sunset | 18:17 |
| Civil Twilight End | 18:48 |
| Nautical Twilight End | 19:24 |
| Astronomical Twilight End | 19:59 |
| Moon Illumination | 4.29% |