| Geyser | 1972-01-27 |
|---|---|
| Old Faithful | 0934 short, 1054 short, 1137 long, 1250 long, 1400 short, 1452 long, 1610 short |
| Values for Old Faithful Area | 1972-01-27 |
|---|---|
| Astronomical Twilight Begin | 06:06 |
| Nautical Twilight Begin | 06:41 |
| Civil Twilight Begin | 07:16 |
| Sunrise | 07:47 |
| Sunset | 17:24 |
| Civil Twilight End | 17:55 |
| Nautical Twilight End | 18:31 |
| Astronomical Twilight End | 19:05 |
| Moon Illumination | 88.63% |