| Geyser | 1968-06-16 |
|---|---|
| Constant | 1000, 1015 |
| Ebony | 0000 A |
| Echinus | 0830 |
| Fan-Norris | 1000, 1145, 1328, 1345, 1423, 1525 |
| Ledge | 0700 A, 0812 |
| Valentine | 0000 A |
| Values for Old Faithful Area | 1968-06-16 |
|---|---|
| Astronomical Twilight Begin | 03:09 |
| Nautical Twilight Begin | 04:12 |
| Civil Twilight Begin | 05:01 |
| Sunrise | 05:37 |
| Sunset | 21:10 |
| Civil Twilight End | 21:46 |
| Nautical Twilight End | 22:35 |
| Astronomical Twilight End | 23:38 |
| Moon Illumination | 65.43% |