| Geyser | 1961-05-17 |
|---|---|
| No reports yet |
| Values for Old Faithful Area | 1961-05-17 |
|---|---|
| Astronomical Twilight Begin | 02:45 |
| Nautical Twilight Begin | 03:36 |
| Civil Twilight Begin | 04:19 |
| Sunrise | 04:53 |
| Sunset | 19:45 |
| Civil Twilight End | 20:19 |
| Nautical Twilight End | 21:03 |
| Astronomical Twilight End | 21:54 |
| Moon Illumination | 6.98% |