| Geyser | 1983-03-13 |
|---|---|
| Steamboat | 0000 A |
| Values for Old Faithful Area | 1983-03-13 |
|---|---|
| Astronomical Twilight Begin | 05:02 |
| Nautical Twilight Begin | 05:36 |
| Civil Twilight Begin | 06:10 |
| Sunrise | 06:39 |
| Sunset | 18:26 |
| Civil Twilight End | 18:55 |
| Nautical Twilight End | 19:28 |
| Astronomical Twilight End | 20:03 |
| Moon Illumination | 2.05% |