| Geyser | 1971-01-10 |
|---|---|
| Castle | 1445 |
| Old Faithful | 1020, 1109 long, 1222 short, 1314 long, 1434 short, 1522 long |
| Values for Old Faithful Area | 1971-01-10 |
|---|---|
| Astronomical Twilight Begin | 06:14 |
| Nautical Twilight Begin | 06:49 |
| Civil Twilight Begin | 07:25 |
| Sunrise | 07:58 |
| Sunset | 17:03 |
| Civil Twilight End | 17:35 |
| Nautical Twilight End | 18:12 |
| Astronomical Twilight End | 18:47 |
| Moon Illumination | 98.36% |