| Geyser | 1980-06-03 |
|---|---|
| Bear Den | 1600 A |
| Constant | 1200 |
| Echinus | 1512, 1547:10, 1627:30 |
| Little Whirligig | 1200 |
| Values for Old Faithful Area | 1980-06-03 |
|---|---|
| Astronomical Twilight Begin | 03:18 |
| Nautical Twilight Begin | 04:17 |
| Civil Twilight Begin | 05:04 |
| Sunrise | 05:40 |
| Sunset | 21:02 |
| Civil Twilight End | 21:38 |
| Nautical Twilight End | 22:25 |
| Astronomical Twilight End | 23:24 |
| Moon Illumination | 80.02% |