| Geyser | 1977-02-14 |
|---|---|
| Old Faithful | 0917, 1018, 1137, 1248 long, 1402, 1510, 1627 long |
| Values for Old Faithful Area | 1977-02-14 |
|---|---|
| Astronomical Twilight Begin | 05:46 |
| Nautical Twilight Begin | 06:20 |
| Civil Twilight Begin | 06:54 |
| Sunrise | 07:24 |
| Sunset | 17:50 |
| Civil Twilight End | 18:20 |
| Nautical Twilight End | 18:54 |
| Astronomical Twilight End | 19:28 |
| Moon Illumination | 17.28% |