| Geyser | 1972-02-11 |
|---|---|
| Old Faithful | 1027 long, 1113 long, 1220 short, 1327 short, 1415 long, 1541 short, 1629 |
| Values for Old Faithful Area | 1972-02-11 |
|---|---|
| Astronomical Twilight Begin | 05:51 |
| Nautical Twilight Begin | 06:25 |
| Civil Twilight Begin | 06:59 |
| Sunrise | 07:29 |
| Sunset | 17:45 |
| Civil Twilight End | 18:15 |
| Nautical Twilight End | 18:49 |
| Astronomical Twilight End | 19:23 |
| Moon Illumination | 15.86% |