| Geyser | 1967-08-13 |
|---|---|
| Bear Den | 1753 |
| Ebony | 2045 ie |
| Echinus | 0858, 0950, 1138, 1415, 1508, 1559, 1652 |
| Values for Old Faithful Area | 1967-08-13 |
|---|---|
| Astronomical Twilight Begin | 04:28 |
| Nautical Twilight Begin | 05:12 |
| Civil Twilight Begin | 05:51 |
| Sunrise | 06:23 |
| Sunset | 20:32 |
| Civil Twilight End | 21:04 |
| Nautical Twilight End | 21:44 |
| Astronomical Twilight End | 22:27 |
| Moon Illumination | 54.44% |