| Geyser | 1972-12-30 |
|---|---|
| Old Faithful | 0838, 0949, 1100, 1152, 1310, 1358, 1506, 1613 |
| Values for Old Faithful Area | 1972-12-30 |
|---|---|
| Astronomical Twilight Begin | 06:14 |
| Nautical Twilight Begin | 06:49 |
| Civil Twilight Begin | 07:26 |
| Sunrise | 07:59 |
| Sunset | 16:52 |
| Civil Twilight End | 17:25 |
| Nautical Twilight End | 18:02 |
| Astronomical Twilight End | 18:38 |
| Moon Illumination | 23.95% |