| Geyser | 1972-02-04 |
|---|---|
| Old Faithful | 1055 long, 1210 long, 1324 short, 1416 long, 1534 short, 1626 |
| Values for Old Faithful Area | 1972-02-04 |
|---|---|
| Astronomical Twilight Begin | 05:59 |
| Nautical Twilight Begin | 06:33 |
| Civil Twilight Begin | 07:08 |
| Sunrise | 07:38 |
| Sunset | 17:35 |
| Civil Twilight End | 18:06 |
| Nautical Twilight End | 18:41 |
| Astronomical Twilight End | 19:14 |
| Moon Illumination | 78.27% |