| Geyser | 1930-09-28 |
|---|---|
| Giant | 0000 A |
| Values for Old Faithful Area | 1930-09-28 |
|---|---|
| Astronomical Twilight Begin | 04:39 |
| Nautical Twilight Begin | 05:14 |
| Civil Twilight Begin | 05:48 |
| Sunrise | 06:17 |
| Sunset | 18:11 |
| Civil Twilight End | 18:40 |
| Nautical Twilight End | 19:13 |
| Astronomical Twilight End | 19:48 |
| Moon Illumination | 36.89% |