| Geyser | 1981-06-09 |
|---|---|
| Echinus | 1120:27, 1156:49 |
| Sunday | 0618:39, 0625:26, 0633:45, 0641:43, 1200, 1818:39, 1821, 1825:26, 1833:45 |
| Whirligig | 0640:24, 1840 |
| Values for Old Faithful Area | 1981-06-09 |
|---|---|
| Astronomical Twilight Begin | 03:12 |
| Nautical Twilight Begin | 04:14 |
| Civil Twilight Begin | 05:02 |
| Sunrise | 05:38 |
| Sunset | 21:06 |
| Civil Twilight End | 21:42 |
| Nautical Twilight End | 22:30 |
| Astronomical Twilight End | 23:32 |
| Moon Illumination | 47.72% |