| Values for Old Faithful Area | 1998-10-27 |
|---|---|
| Astronomical Twilight Begin | 05:16 |
| Nautical Twilight Begin | 05:50 |
| Civil Twilight Begin | 06:24 |
| Sunrise | 06:54 |
| Sunset | 17:20 |
| Civil Twilight End | 17:50 |
| Nautical Twilight End | 18:24 |
| Astronomical Twilight End | 18:57 |
| Moon Illumination | 37.87% |