| Geyser | 1967-07-12 |
|---|---|
| Arsenic | 1120, 1150 |
| Colloidal Pool | 1200 |
| Corporal | 1200 |
| Echinus | 0815, 0910, 1101, 1156, 1249, 1442, 1536, 1633, 1726 |
| Minute | 1200 |
| Veteran | 0623, 0846, 1823 |
| Values for Old Faithful Area | 1967-07-12 |
|---|---|
| Astronomical Twilight Begin | 03:30 |
| Nautical Twilight Begin | 04:27 |
| Civil Twilight Begin | 05:14 |
| Sunrise | 05:49 |
| Sunset | 21:07 |
| Civil Twilight End | 21:43 |
| Nautical Twilight End | 22:29 |
| Astronomical Twilight End | 23:27 |
| Moon Illumination | 23.7% |