| Geyser | 1972-02-07 |
|---|---|
| Old Faithful | 1245 long, 1353, 1440 short, 1555 short |
| Values for Old Faithful Area | 1972-02-07 |
|---|---|
| Astronomical Twilight Begin | 05:56 |
| Nautical Twilight Begin | 06:30 |
| Civil Twilight Begin | 07:04 |
| Sunrise | 07:35 |
| Sunset | 17:39 |
| Civil Twilight End | 18:10 |
| Nautical Twilight End | 18:44 |
| Astronomical Twilight End | 19:18 |
| Moon Illumination | 51.68% |