| Geyser | 1968-09-08 |
|---|---|
| Bear Den | 1605 A |
| Ebony | 0000 A |
| Echinus | 0935, 1330, 1450 |
| Ledge | 1620 |
| Steamboat | 1800 |
| Values for Old Faithful Area | 1968-09-08 |
|---|---|
| Astronomical Twilight Begin | 05:13 |
| Nautical Twilight Begin | 05:49 |
| Civil Twilight Begin | 06:25 |
| Sunrise | 06:54 |
| Sunset | 19:47 |
| Civil Twilight End | 20:16 |
| Nautical Twilight End | 20:51 |
| Astronomical Twilight End | 21:28 |
| Moon Illumination | 98.05% |