| Geyser | 1972-02-15 |
|---|---|
| Old Faithful | 0901 short, 1006 long, 1115 long, 1220 short, 1311 long, 1428 long |
| Values for Old Faithful Area | 1972-02-15 |
|---|---|
| Astronomical Twilight Begin | 05:46 |
| Nautical Twilight Begin | 06:20 |
| Civil Twilight Begin | 06:54 |
| Sunrise | 07:23 |
| Sunset | 17:51 |
| Civil Twilight End | 18:20 |
| Nautical Twilight End | 18:54 |
| Astronomical Twilight End | 19:28 |
| Moon Illumination | 0.1% |