| Geyser | 1961-05-13 |
|---|---|
| No reports yet |
| Values for Old Faithful Area | 1961-05-13 |
|---|---|
| Astronomical Twilight Begin | 02:52 |
| Nautical Twilight Begin | 03:41 |
| Civil Twilight Begin | 04:24 |
| Sunrise | 04:57 |
| Sunset | 19:41 |
| Civil Twilight End | 20:14 |
| Nautical Twilight End | 20:57 |
| Astronomical Twilight End | 21:46 |
| Moon Illumination | 2.28% |