| Geyser | 1972-02-28 |
|---|---|
| Old Faithful | 1108 short, 1157 long, 1316 short, 1407 long, 1518 long, 1623 |
| Values for Old Faithful Area | 1972-02-28 |
|---|---|
| Astronomical Twilight Begin | 05:26 |
| Nautical Twilight Begin | 06:00 |
| Civil Twilight Begin | 06:34 |
| Sunrise | 07:03 |
| Sunset | 18:08 |
| Civil Twilight End | 18:37 |
| Nautical Twilight End | 19:11 |
| Astronomical Twilight End | 19:45 |
| Moon Illumination | 99.31% |