| Geyser | 1980-08-19 |
|---|---|
| Blue | 1200 |
| Colloidal Pool | 1200 |
| Echinus | 1047, 1334, 1414, 1539:00 |
| Orby | 1921 |
| Steamboat | 1200 |
| Values for Old Faithful Area | 1980-08-19 |
|---|---|
| Astronomical Twilight Begin | 04:41 |
| Nautical Twilight Begin | 05:22 |
| Civil Twilight Begin | 06:00 |
| Sunrise | 06:31 |
| Sunset | 20:22 |
| Civil Twilight End | 20:53 |
| Nautical Twilight End | 21:31 |
| Astronomical Twilight End | 22:12 |
| Moon Illumination | 53.11% |