| Geyser | 1975-12-27 |
|---|---|
| Beehive | 1125, 2238 |
| Castle | 1328 ie |
| Depression | 1323 |
| Old Faithful | 0929 long, 1045 short, 1129 long, 1247 short, 1351 long, 1508 long |
| Values for Old Faithful Area | 1975-12-27 |
|---|---|
| Astronomical Twilight Begin | 06:13 |
| Nautical Twilight Begin | 06:48 |
| Civil Twilight Begin | 07:25 |
| Sunrise | 07:58 |
| Sunset | 16:49 |
| Civil Twilight End | 17:23 |
| Nautical Twilight End | 17:59 |
| Astronomical Twilight End | 18:35 |
| Moon Illumination | 31.47% |