| Geyser | 1977-01-28 |
|---|---|
| Lion | 1346 ie |
| Old Faithful | 0921, 1015 long, 1133 long, 1241, 1407 long, 1525 short, 1626 long |
| Values for Old Faithful Area | 1977-01-28 |
|---|---|
| Astronomical Twilight Begin | 06:05 |
| Nautical Twilight Begin | 06:39 |
| Civil Twilight Begin | 07:14 |
| Sunrise | 07:45 |
| Sunset | 17:26 |
| Civil Twilight End | 17:58 |
| Nautical Twilight End | 18:33 |
| Astronomical Twilight End | 19:07 |
| Moon Illumination | 60.04% |