| Geyser | 1975-01-11 |
|---|---|
| Lion | 1312, 1506 |
| Old Faithful | 0856 short, 1002 short, 1046 long, 1207 short, 1251 long, 1404 long, 1509 short, 1558 long |
| Round | 1155 |
| Values for Old Faithful Area | 1975-01-11 |
|---|---|
| Astronomical Twilight Begin | 06:14 |
| Nautical Twilight Begin | 06:49 |
| Civil Twilight Begin | 07:25 |
| Sunrise | 07:58 |
| Sunset | 17:04 |
| Civil Twilight End | 17:36 |
| Nautical Twilight End | 18:13 |
| Astronomical Twilight End | 18:48 |
| Moon Illumination | 1.21% |