| Geyser | 1986-08-27 |
|---|---|
| Echinus | 1004, 1050, 1157, 1305, 1412, 1445 ? |
| Steamvalve Spring | 1130 |
| Values for Old Faithful Area | 1986-08-27 |
|---|---|
| Astronomical Twilight Begin | 04:53 |
| Nautical Twilight Begin | 05:33 |
| Civil Twilight Begin | 06:09 |
| Sunrise | 06:40 |
| Sunset | 20:09 |
| Civil Twilight End | 20:39 |
| Nautical Twilight End | 21:16 |
| Astronomical Twilight End | 21:55 |
| Moon Illumination | 51.03% |