| Geyser | 1971-01-24 |
|---|---|
| Castle | 1610 |
| Lion | 1625 |
| Old Faithful | 1100 short, 1131 long, 1251 short, 1340 long, 1447 short, 1552 long |
| Values for Old Faithful Area | 1971-01-24 |
|---|---|
| Astronomical Twilight Begin | 06:08 |
| Nautical Twilight Begin | 06:43 |
| Civil Twilight Begin | 07:18 |
| Sunrise | 07:50 |
| Sunset | 17:20 |
| Civil Twilight End | 17:52 |
| Nautical Twilight End | 18:27 |
| Astronomical Twilight End | 19:02 |
| Moon Illumination | 9.49% |