| Geyser | 1972-01-04 |
|---|---|
| Old Faithful | 0940 short, 1034 short, 1154 short, 1246 long, 1356 short |
| Values for Old Faithful Area | 1972-01-04 |
|---|---|
| Astronomical Twilight Begin | 06:14 |
| Nautical Twilight Begin | 06:50 |
| Civil Twilight Begin | 07:26 |
| Sunrise | 07:59 |
| Sunset | 16:56 |
| Civil Twilight End | 17:29 |
| Nautical Twilight End | 18:06 |
| Astronomical Twilight End | 18:41 |
| Moon Illumination | 86.91% |