| Geyser | 1949-09-21 |
|---|---|
| No reports yet |
| Values for Old Faithful Area | 1949-09-21 |
|---|---|
| Astronomical Twilight Begin | 04:31 |
| Nautical Twilight Begin | 05:06 |
| Civil Twilight Begin | 05:40 |
| Sunrise | 06:09 |
| Sunset | 18:23 |
| Civil Twilight End | 18:52 |
| Nautical Twilight End | 19:26 |
| Astronomical Twilight End | 20:01 |
| Moon Illumination | 2.29% |