| Values for Old Faithful Area | 1994-04-09 |
|---|---|
| Astronomical Twilight Begin | 05:05 |
| Nautical Twilight Begin | 05:43 |
| Civil Twilight Begin | 06:19 |
| Sunrise | 06:49 |
| Sunset | 20:00 |
| Civil Twilight End | 20:30 |
| Nautical Twilight End | 21:05 |
| Astronomical Twilight End | 21:43 |
| Moon Illumination | 2.84% |