| Geyser | 1972-10-27 |
|---|---|
| Old Faithful | 1121, 1222, 1329, 1412, 1526, 1638, 1748 |
| Values for Old Faithful Area | 1972-10-27 |
|---|---|
| Astronomical Twilight Begin | 06:16 |
| Nautical Twilight Begin | 06:50 |
| Civil Twilight Begin | 07:24 |
| Sunrise | 07:54 |
| Sunset | 18:19 |
| Civil Twilight End | 18:49 |
| Nautical Twilight End | 19:23 |
| Astronomical Twilight End | 19:57 |
| Moon Illumination | 71.15% |