| Geyser | 1972-01-28 |
|---|---|
| Old Faithful | 1031 short, 1120 long, 1230 long, 1340 long, 1451 short, 1540 long |
| Values for Old Faithful Area | 1972-01-28 |
|---|---|
| Astronomical Twilight Begin | 06:05 |
| Nautical Twilight Begin | 06:40 |
| Civil Twilight Begin | 07:15 |
| Sunrise | 07:46 |
| Sunset | 17:25 |
| Civil Twilight End | 17:57 |
| Nautical Twilight End | 18:32 |
| Astronomical Twilight End | 19:06 |
| Moon Illumination | 94.67% |