| Geyser | 1969-08-16 |
|---|---|
| Echinus | 0830, 0905, 1025, 1142, 1220, 1315, 1350, 1427, 1518, 1620 |
| Fan-Norris | 1745 ie |
| Values for Old Faithful Area | 1969-08-16 |
|---|---|
| Astronomical Twilight Begin | 04:35 |
| Nautical Twilight Begin | 05:17 |
| Civil Twilight Begin | 05:56 |
| Sunrise | 06:27 |
| Sunset | 20:27 |
| Civil Twilight End | 20:58 |
| Nautical Twilight End | 21:37 |
| Astronomical Twilight End | 22:19 |
| Moon Illumination | 8.72% |