| Geyser | 1975-12-26 |
|---|---|
| Beehive | 1520 |
| Castle | 0953 |
| Old Faithful | 0907 short, 1019 long, 1129 long, 1236 long, 1352 long, 1506 short, 1550 |
| Values for Old Faithful Area | 1975-12-26 |
|---|---|
| Astronomical Twilight Begin | 06:12 |
| Nautical Twilight Begin | 06:48 |
| Civil Twilight Begin | 07:25 |
| Sunrise | 07:58 |
| Sunset | 16:49 |
| Civil Twilight End | 17:22 |
| Nautical Twilight End | 17:59 |
| Astronomical Twilight End | 18:34 |
| Moon Illumination | 42.49% |