| Geyser | 1980-06-29 |
|---|---|
| Echinus | 0859, 1039, 1200, 1416, 1609, 1637 |
| Orby | 1800 |
| Steamboat | 1200 |
| Veteran | 1656 |
| Values for Old Faithful Area | 1980-06-29 |
|---|---|
| Astronomical Twilight Begin | 03:14 |
| Nautical Twilight Begin | 04:16 |
| Civil Twilight Begin | 05:05 |
| Sunrise | 05:41 |
| Sunset | 21:11 |
| Civil Twilight End | 21:48 |
| Nautical Twilight End | 22:36 |
| Astronomical Twilight End | 23:39 |
| Moon Illumination | 99.11% |