| Geyser | 1971-01-22 |
|---|---|
| Castle | 1205 |
| Depression | 1405 |
| Dome | 1015, 1021, 1100, 1108, 1223, 1335, 1345, 1418 |
| Old Faithful | 1022 short, 1112 long, 1230 short, 1315 long, 1431 long, 1533 short |
| Values for Old Faithful Area | 1971-01-22 |
|---|---|
| Astronomical Twilight Begin | 06:09 |
| Nautical Twilight Begin | 06:44 |
| Civil Twilight Begin | 07:20 |
| Sunrise | 07:51 |
| Sunset | 17:18 |
| Civil Twilight End | 17:49 |
| Nautical Twilight End | 18:25 |
| Astronomical Twilight End | 18:59 |
| Moon Illumination | 25.55% |