| Geyser | 1983-01-19 |
|---|---|
| Steamboat | 1800 ie |
| Values for Old Faithful Area | 1983-01-19 |
|---|---|
| Astronomical Twilight Begin | 06:11 |
| Nautical Twilight Begin | 06:46 |
| Civil Twilight Begin | 07:21 |
| Sunrise | 07:53 |
| Sunset | 17:14 |
| Civil Twilight End | 17:46 |
| Nautical Twilight End | 18:21 |
| Astronomical Twilight End | 18:56 |
| Moon Illumination | 21.89% |