| Geyser | 1990-09-24 |
|---|---|
| Occasional | 1130 |
| Values for Old Faithful Area | 1990-09-24 |
|---|---|
| Astronomical Twilight Begin | 05:35 |
| Nautical Twilight Begin | 06:09 |
| Civil Twilight Begin | 06:43 |
| Sunrise | 07:12 |
| Sunset | 19:17 |
| Civil Twilight End | 19:46 |
| Nautical Twilight End | 20:20 |
| Astronomical Twilight End | 20:55 |
| Moon Illumination | 24.41% |