| Geyser | 1972-02-12 |
|---|---|
| Old Faithful | 0949 long, 1055 long, 1213 short, 1321 long, 1437 short, 1517 long, 1635 short |
| Values for Old Faithful Area | 1972-02-12 |
|---|---|
| Astronomical Twilight Begin | 05:50 |
| Nautical Twilight Begin | 06:24 |
| Civil Twilight Begin | 06:58 |
| Sunrise | 07:28 |
| Sunset | 17:46 |
| Civil Twilight End | 18:16 |
| Nautical Twilight End | 18:51 |
| Astronomical Twilight End | 19:24 |
| Moon Illumination | 8.99% |