| Geyser | 1968-07-23 |
|---|---|
| Ebony | 0815 A |
| Echinus | 0725, 0930, 1049, 1135, 1206, 1245, 1400, 1530, 1605 |
| Ledge | 0620 ie |
| Values for Old Faithful Area | 1968-07-23 |
|---|---|
| Astronomical Twilight Begin | 03:50 |
| Nautical Twilight Begin | 04:42 |
| Civil Twilight Begin | 05:26 |
| Sunrise | 06:00 |
| Sunset | 20:58 |
| Civil Twilight End | 21:32 |
| Nautical Twilight End | 22:16 |
| Astronomical Twilight End | 23:08 |
| Moon Illumination | 4.96% |