| Values for Old Faithful Area | 1990-02-28 |
|---|---|
| Astronomical Twilight Begin | 05:25 |
| Nautical Twilight Begin | 05:59 |
| Civil Twilight Begin | 06:32 |
| Sunrise | 07:02 |
| Sunset | 18:09 |
| Civil Twilight End | 18:38 |
| Nautical Twilight End | 19:12 |
| Astronomical Twilight End | 19:46 |
| Moon Illumination | 11.32% |