| Geyser | 1975-12-24 |
|---|---|
| Castle | 1230 |
| Lion | 1028 |
| Old Faithful | 0906 long, 1020 long, 1137 long, 1242 long, 1350 short, 1436 long, 1552 short |
| Values for Old Faithful Area | 1975-12-24 |
|---|---|
| Astronomical Twilight Begin | 06:12 |
| Nautical Twilight Begin | 06:47 |
| Civil Twilight Begin | 07:24 |
| Sunrise | 07:57 |
| Sunset | 16:47 |
| Civil Twilight End | 17:21 |
| Nautical Twilight End | 17:58 |
| Astronomical Twilight End | 18:33 |
| Moon Illumination | 65.07% |