| Geyser | 1950-10-07 |
|---|---|
| Giant | 0000 A |
| Values for Old Faithful Area | 1950-10-07 |
|---|---|
| Astronomical Twilight Begin | 04:51 |
| Nautical Twilight Begin | 05:25 |
| Civil Twilight Begin | 05:59 |
| Sunrise | 06:28 |
| Sunset | 17:54 |
| Civil Twilight End | 18:23 |
| Nautical Twilight End | 18:56 |
| Astronomical Twilight End | 19:30 |
| Moon Illumination | 21.85% |