| Values for Old Faithful Area | 1975-05-03 |
|---|---|
| Astronomical Twilight Begin | 04:14 |
| Nautical Twilight Begin | 04:59 |
| Civil Twilight Begin | 05:39 |
| Sunrise | 06:11 |
| Sunset | 20:29 |
| Civil Twilight End | 21:01 |
| Nautical Twilight End | 21:41 |
| Astronomical Twilight End | 22:25 |
| Moon Illumination | 49.95% |