| Geyser | 1972-02-23 |
|---|---|
| Old Faithful | 1052 short, 1146 long, 1258, 1345 long, 1458, 1600 |
| Values for Old Faithful Area | 1972-02-23 |
|---|---|
| Astronomical Twilight Begin | 05:34 |
| Nautical Twilight Begin | 06:08 |
| Civil Twilight Begin | 06:42 |
| Sunrise | 07:11 |
| Sunset | 18:02 |
| Civil Twilight End | 18:31 |
| Nautical Twilight End | 19:05 |
| Astronomical Twilight End | 19:38 |
| Moon Illumination | 67.05% |