| Geyser | 1977-04-10 |
|---|---|
| No reports yet |
| Values for Old Faithful Area | 1977-04-10 |
|---|---|
| Astronomical Twilight Begin | 04:03 |
| Nautical Twilight Begin | 04:41 |
| Civil Twilight Begin | 05:17 |
| Sunrise | 05:47 |
| Sunset | 19:01 |
| Civil Twilight End | 19:31 |
| Nautical Twilight End | 20:07 |
| Astronomical Twilight End | 20:45 |
| Moon Illumination | 55.75% |