| Geyser | 1976-01-25 |
|---|---|
| Beehive | 1147 ie |
| Castle | 0800 ie |
| Grand | 1100 ie |
| Old Faithful | 0840 short, 0937 long, 1056 long, 1211 long, 1315 long, 1422 long, 1537 long |
| Values for Old Faithful Area | 1976-01-25 |
|---|---|
| Astronomical Twilight Begin | 06:08 |
| Nautical Twilight Begin | 06:42 |
| Civil Twilight Begin | 07:17 |
| Sunrise | 07:49 |
| Sunset | 17:21 |
| Civil Twilight End | 17:53 |
| Nautical Twilight End | 18:28 |
| Astronomical Twilight End | 19:03 |
| Moon Illumination | 35.39% |