| Geyser | 1997-11-27 |
|---|---|
| Castle | 0835 E, 2020 E |
| Values for Old Faithful Area | 1997-11-27 |
|---|---|
| Astronomical Twilight Begin | 05:52 |
| Nautical Twilight Begin | 06:26 |
| Civil Twilight Begin | 07:02 |
| Sunrise | 07:35 |
| Sunset | 16:46 |
| Civil Twilight End | 17:19 |
| Nautical Twilight End | 17:55 |
| Astronomical Twilight End | 18:30 |
| Moon Illumination | 7.8% |