| Geyser | 1976-02-23 |
|---|---|
| Beehive | 1745 |
| Castle | 1325 ie |
| Grand | 1504 |
| Old Faithful | 0907 long, 1026 short, 1113 long, 1240 short, 1328 long, 1447 short, 1541 long |
| Values for Old Faithful Area | 1976-02-23 |
|---|---|
| Astronomical Twilight Begin | 05:34 |
| Nautical Twilight Begin | 06:08 |
| Civil Twilight Begin | 06:42 |
| Sunrise | 07:11 |
| Sunset | 18:02 |
| Civil Twilight End | 18:31 |
| Nautical Twilight End | 19:05 |
| Astronomical Twilight End | 19:38 |
| Moon Illumination | 39.76% |