| Values for Old Faithful Area | 1975-10-07 |
|---|---|
| Astronomical Twilight Begin | 05:51 |
| Nautical Twilight Begin | 06:25 |
| Civil Twilight Begin | 06:59 |
| Sunrise | 07:28 |
| Sunset | 18:54 |
| Civil Twilight End | 19:23 |
| Nautical Twilight End | 19:56 |
| Astronomical Twilight End | 20:30 |
| Moon Illumination | 6.47% |