| Values for Old Faithful Area | 1976-10-08 |
|---|---|
| Astronomical Twilight Begin | 05:53 |
| Nautical Twilight Begin | 06:27 |
| Civil Twilight Begin | 07:01 |
| Sunrise | 07:30 |
| Sunset | 18:51 |
| Civil Twilight End | 19:20 |
| Nautical Twilight End | 19:53 |
| Astronomical Twilight End | 20:27 |
| Moon Illumination | 100% |