| Values for Old Faithful Area | 1972-08-07 |
|---|---|
| Astronomical Twilight Begin | 04:19 |
| Nautical Twilight Begin | 05:04 |
| Civil Twilight Begin | 05:44 |
| Sunrise | 06:17 |
| Sunset | 20:40 |
| Civil Twilight End | 21:12 |
| Nautical Twilight End | 21:53 |
| Astronomical Twilight End | 22:38 |
| Moon Illumination | 4.79% |