| Geyser | 1972-02-16 |
|---|---|
| Old Faithful | 1123 short, 1206 long, 1324 short, 1416 long, 1529 short, 1626 long |
| Values for Old Faithful Area | 1972-02-16 |
|---|---|
| Astronomical Twilight Begin | 05:45 |
| Nautical Twilight Begin | 06:18 |
| Civil Twilight Begin | 06:52 |
| Sunrise | 07:22 |
| Sunset | 17:52 |
| Civil Twilight End | 18:22 |
| Nautical Twilight End | 18:56 |
| Astronomical Twilight End | 19:29 |
| Moon Illumination | 2.21% |