| Values for Old Faithful Area | 2001-02-22 |
|---|---|
| Astronomical Twilight Begin | 05:34 |
| Nautical Twilight Begin | 06:08 |
| Civil Twilight Begin | 06:42 |
| Sunrise | 07:11 |
| Sunset | 18:02 |
| Civil Twilight End | 18:31 |
| Nautical Twilight End | 19:05 |
| Astronomical Twilight End | 19:38 |
| Moon Illumination | 1% |