| Geyser | 1950-09-15 |
|---|---|
| Giant | 0000 A |
| Values for Old Faithful Area | 1950-09-15 |
|---|---|
| Astronomical Twilight Begin | 04:22 |
| Nautical Twilight Begin | 04:58 |
| Civil Twilight Begin | 05:32 |
| Sunrise | 06:01 |
| Sunset | 18:35 |
| Civil Twilight End | 19:04 |
| Nautical Twilight End | 19:38 |
| Astronomical Twilight End | 20:14 |
| Moon Illumination | 13.01% |