| Geyser | 1975-02-19 |
|---|---|
| Castle | 0857, 1754 ie |
| Dome | 1350 ie |
| Lion | 1514 ie |
| Old Faithful | 0721, 0838 short, 0917 long, 1042 short, 1143 long, 1256 short, 1351 long, 1508 short, 1559 long, 1834 long, 1949 |
| Riverside | 0753 ie |
| Values for Old Faithful Area | 1975-02-19 |
|---|---|
| Astronomical Twilight Begin | 05:40 |
| Nautical Twilight Begin | 06:13 |
| Civil Twilight Begin | 06:47 |
| Sunrise | 07:17 |
| Sunset | 17:57 |
| Civil Twilight End | 18:26 |
| Nautical Twilight End | 19:00 |
| Astronomical Twilight End | 19:34 |
| Moon Illumination | 49.86% |