| Geyser | 1972-01-25 |
|---|---|
| Old Faithful | 1010 long, 1130 short, 1217 long, 1331 short, 1434 long, 1545 long, 1652 long |
| Values for Old Faithful Area | 1972-01-25 |
|---|---|
| Astronomical Twilight Begin | 06:08 |
| Nautical Twilight Begin | 06:42 |
| Civil Twilight Begin | 07:17 |
| Sunrise | 07:49 |
| Sunset | 17:21 |
| Civil Twilight End | 17:53 |
| Nautical Twilight End | 18:28 |
| Astronomical Twilight End | 19:03 |
| Moon Illumination | 70.96% |