| Geyser | 1971-09-27 |
|---|---|
| Beehive | 1640 |
| Castle | 1125 ie |
| Old Faithful | 0827 long, 0935 short, 1021 long, 1138 short, 1225, 1340 short, 1428 long, 1540 short, 1637 long |
| Values for Old Faithful Area | 1971-09-27 |
|---|---|
| Astronomical Twilight Begin | 05:38 |
| Nautical Twilight Begin | 06:13 |
| Civil Twilight Begin | 06:47 |
| Sunrise | 07:15 |
| Sunset | 19:12 |
| Civil Twilight End | 19:41 |
| Nautical Twilight End | 20:15 |
| Astronomical Twilight End | 20:50 |
| Moon Illumination | 45.22% |