| Values for Old Faithful Area | 1971-05-26 |
|---|---|
| Astronomical Twilight Begin | 03:30 |
| Nautical Twilight Begin | 04:25 |
| Civil Twilight Begin | 05:10 |
| Sunrise | 05:45 |
| Sunset | 20:54 |
| Civil Twilight End | 21:29 |
| Nautical Twilight End | 22:15 |
| Astronomical Twilight End | 23:10 |
| Moon Illumination | 3.81% |