| Geyser | 1977-01-22 |
|---|---|
| Basin | 1800 |
| Beehive | 1440 |
| Castle | 0845 ie |
| Lion | 1614 |
| Old Faithful | 0934, 1048 long, 1206 short, 1250, 1404 short, 1520 long, 1629 long |
| Values for Old Faithful Area | 1977-01-22 |
|---|---|
| Astronomical Twilight Begin | 06:09 |
| Nautical Twilight Begin | 06:44 |
| Civil Twilight Begin | 07:19 |
| Sunrise | 07:51 |
| Sunset | 17:18 |
| Civil Twilight End | 17:50 |
| Nautical Twilight End | 18:25 |
| Astronomical Twilight End | 19:00 |
| Moon Illumination | 8.64% |