| Geyser | 1972-10-15 |
|---|---|
| Beehive | 1634 |
| Castle | 1405 |
| Grand | 1522 |
| Old Faithful | 0847, 1001, 1056, 1218, 1256, 1419, 1520, 1628, 1739 |
| Values for Old Faithful Area | 1972-10-15 |
|---|---|
| Astronomical Twilight Begin | 06:02 |
| Nautical Twilight Begin | 06:36 |
| Civil Twilight Begin | 07:09 |
| Sunrise | 07:38 |
| Sunset | 18:39 |
| Civil Twilight End | 19:08 |
| Nautical Twilight End | 19:41 |
| Astronomical Twilight End | 20:15 |
| Moon Illumination | 47.31% |