| Values for Old Faithful Area | 1988-08-05 |
|---|---|
| Astronomical Twilight Begin | 04:15 |
| Nautical Twilight Begin | 05:01 |
| Civil Twilight Begin | 05:42 |
| Sunrise | 06:15 |
| Sunset | 20:43 |
| Civil Twilight End | 21:15 |
| Nautical Twilight End | 21:56 |
| Astronomical Twilight End | 22:42 |
| Moon Illumination | 44.72% |