| Geyser | 1986-09-01 |
|---|---|
| Bear Den | 1350 |
| Echinus | 1005 maj, 1157 min, 1225, 1313, 1429, 1523, 1619 maj |
| Values for Old Faithful Area | 1986-09-01 |
|---|---|
| Astronomical Twilight Begin | 05:01 |
| Nautical Twilight Begin | 05:40 |
| Civil Twilight Begin | 06:16 |
| Sunrise | 06:46 |
| Sunset | 20:00 |
| Civil Twilight End | 20:30 |
| Nautical Twilight End | 21:06 |
| Astronomical Twilight End | 21:44 |
| Moon Illumination | 9.65% |