| Geyser | 1972-01-12 |
|---|---|
| Old Faithful | 0946 long, 1053 short, 1200 short, 1251 long, 1404 short, 1505 long, 1624 short, 1710 |
| Values for Old Faithful Area | 1972-01-12 |
|---|---|
| Astronomical Twilight Begin | 06:14 |
| Nautical Twilight Begin | 06:49 |
| Civil Twilight Begin | 07:25 |
| Sunrise | 07:57 |
| Sunset | 17:05 |
| Civil Twilight End | 17:37 |
| Nautical Twilight End | 18:13 |
| Astronomical Twilight End | 18:48 |
| Moon Illumination | 17.41% |