| Geyser | 1976-12-26 |
|---|---|
| Aurum | 1130 |
| Beehive | 1347 |
| Castle | 1130 ie |
| Grand | 1050 ie |
| Old Faithful | 0843 long, 1018 short, 1113 long, 1226 short, 1323 long, 1437 long, 1551 long |
| Values for Old Faithful Area | 1976-12-26 |
|---|---|
| Astronomical Twilight Begin | 06:13 |
| Nautical Twilight Begin | 06:48 |
| Civil Twilight Begin | 07:25 |
| Sunrise | 07:58 |
| Sunset | 16:49 |
| Civil Twilight End | 17:22 |
| Nautical Twilight End | 17:59 |
| Astronomical Twilight End | 18:35 |
| Moon Illumination | 30.27% |