| Values for Old Faithful Area | 1997-04-14 |
|---|---|
| Astronomical Twilight Begin | 04:54 |
| Nautical Twilight Begin | 05:33 |
| Civil Twilight Begin | 06:10 |
| Sunrise | 06:40 |
| Sunset | 20:06 |
| Civil Twilight End | 20:36 |
| Nautical Twilight End | 21:13 |
| Astronomical Twilight End | 21:52 |
| Moon Illumination | 45.43% |