| Geyser | 1972-01-22 |
|---|---|
| Old Faithful | 0928 long, 1037 short, 1159 short, 1246 long, 1355 short, 1459 short, 1613 short, 1711 |
| Values for Old Faithful Area | 1972-01-22 |
|---|---|
| Astronomical Twilight Begin | 06:10 |
| Nautical Twilight Begin | 06:44 |
| Civil Twilight Begin | 07:20 |
| Sunrise | 07:51 |
| Sunset | 17:17 |
| Civil Twilight End | 17:49 |
| Nautical Twilight End | 18:25 |
| Astronomical Twilight End | 18:59 |
| Moon Illumination | 37.54% |