| Values for Old Faithful Area | 1976-08-14 |
|---|---|
| Astronomical Twilight Begin | 04:32 |
| Nautical Twilight Begin | 05:15 |
| Civil Twilight Begin | 05:53 |
| Sunrise | 06:25 |
| Sunset | 20:30 |
| Civil Twilight End | 21:01 |
| Nautical Twilight End | 21:40 |
| Astronomical Twilight End | 22:23 |
| Moon Illumination | 82.75% |