| Geyser | 1948-07-10 |
|---|---|
| Morning | 0915 |
| Values for Old Faithful Area | 1948-07-10 |
|---|---|
| Astronomical Twilight Begin | 02:27 |
| Nautical Twilight Begin | 03:26 |
| Civil Twilight Begin | 04:12 |
| Sunrise | 04:48 |
| Sunset | 20:08 |
| Civil Twilight End | 20:44 |
| Nautical Twilight End | 21:31 |
| Astronomical Twilight End | 22:29 |
| Moon Illumination | 16.3% |