| Geyser | 1952-09-18 |
|---|---|
| Morning | 1200 A |
| Values for Old Faithful Area | 1952-09-18 |
|---|---|
| Astronomical Twilight Begin | 04:27 |
| Nautical Twilight Begin | 05:02 |
| Civil Twilight Begin | 05:36 |
| Sunrise | 06:06 |
| Sunset | 18:28 |
| Civil Twilight End | 18:57 |
| Nautical Twilight End | 19:31 |
| Astronomical Twilight End | 20:07 |
| Moon Illumination | 0.96% |