| Values for Old Faithful Area | 1975-05-08 |
|---|---|
| Astronomical Twilight Begin | 04:03 |
| Nautical Twilight Begin | 04:50 |
| Civil Twilight Begin | 05:31 |
| Sunrise | 06:04 |
| Sunset | 20:35 |
| Civil Twilight End | 21:07 |
| Nautical Twilight End | 21:49 |
| Astronomical Twilight End | 22:35 |
| Moon Illumination | 9.16% |