| Geyser | 1972-01-10 |
|---|---|
| Old Faithful | 1017 long, 1142 short, 1229, 1348 short, 1436 long, 1552 short |
| Values for Old Faithful Area | 1972-01-10 |
|---|---|
| Astronomical Twilight Begin | 06:14 |
| Nautical Twilight Begin | 06:49 |
| Civil Twilight Begin | 07:25 |
| Sunrise | 07:58 |
| Sunset | 17:02 |
| Civil Twilight End | 17:35 |
| Nautical Twilight End | 18:11 |
| Astronomical Twilight End | 18:46 |
| Moon Illumination | 34% |