| Values for Old Faithful Area | 1971-07-08 |
|---|---|
| Astronomical Twilight Begin | 03:24 |
| Nautical Twilight Begin | 04:23 |
| Civil Twilight Begin | 05:10 |
| Sunrise | 05:46 |
| Sunset | 21:09 |
| Civil Twilight End | 21:45 |
| Nautical Twilight End | 22:32 |
| Astronomical Twilight End | 23:32 |
| Moon Illumination | 99.95% |