| Geyser | 1985-06-20 |
|---|---|
| Bear Den | 1246, 1702 ie |
| Constant | 1327, 1513, 1705, 1904 |
| Steamvalve Spring | 2125 |
| Values for Old Faithful Area | 1985-06-20 |
|---|---|
| Astronomical Twilight Begin | 03:09 |
| Nautical Twilight Begin | 04:12 |
| Civil Twilight Begin | 05:01 |
| Sunrise | 05:38 |
| Sunset | 21:11 |
| Civil Twilight End | 21:48 |
| Nautical Twilight End | 22:36 |
| Astronomical Twilight End | 23:40 |
| Moon Illumination | 3.22% |