| Geyser | 1978-08-09 |
|---|---|
| Echinus | 0915, 1041, 1207, 1445, 1623, 2304, 2324 |
| Orby | 0850 |
| Veteran | 1405, 1505 |
| Values for Old Faithful Area | 1978-08-09 |
|---|---|
| Astronomical Twilight Begin | 04:22 |
| Nautical Twilight Begin | 05:06 |
| Civil Twilight Begin | 05:46 |
| Sunrise | 06:19 |
| Sunset | 20:38 |
| Civil Twilight End | 21:10 |
| Nautical Twilight End | 21:50 |
| Astronomical Twilight End | 22:35 |
| Moon Illumination | 24.06% |