| Geyser | 1984-10-14 |
|---|---|
| Giantess | 2006 |
| Values for Old Faithful Area | 1984-10-14 |
|---|---|
| Astronomical Twilight Begin | 06:01 |
| Nautical Twilight Begin | 06:34 |
| Civil Twilight Begin | 07:08 |
| Sunrise | 07:37 |
| Sunset | 18:40 |
| Civil Twilight End | 19:09 |
| Nautical Twilight End | 19:43 |
| Astronomical Twilight End | 20:17 |
| Moon Illumination | 84.07% |