| Geyser | 1965-07-21 |
|---|---|
| Blue | 1635 ie |
| Echinus | 0743, 0857, 1009, 1125, 1236, 1353, 1506, 1621, 1734 |
| Little Whirligig | 1005 ie, 1300 A, 1430 |
| Steamboat | 0800-1630 |
| Values for Old Faithful Area | 1965-07-21 |
|---|---|
| Astronomical Twilight Begin | 03:46 |
| Nautical Twilight Begin | 04:39 |
| Civil Twilight Begin | 05:23 |
| Sunrise | 05:58 |
| Sunset | 21:00 |
| Civil Twilight End | 21:35 |
| Nautical Twilight End | 22:19 |
| Astronomical Twilight End | 23:12 |
| Moon Illumination | 55.24% |