| Geyser | 1997-11-19 |
|---|---|
| Castle | 0400 E, 1550 E |
| Values for Old Faithful Area | 1997-11-19 |
|---|---|
| Astronomical Twilight Begin | 05:43 |
| Nautical Twilight Begin | 06:18 |
| Civil Twilight Begin | 06:53 |
| Sunrise | 07:25 |
| Sunset | 16:52 |
| Civil Twilight End | 17:24 |
| Nautical Twilight End | 17:59 |
| Astronomical Twilight End | 18:34 |
| Moon Illumination | 75.44% |