| Geyser | 1991-06-19 |
|---|---|
| Constant | 1123 |
| Echinus | 0945, 1036 maj, 1324, 1343, 1432, 1522, 1615 maj |
| Fireball | 1145 |
| Veteran | 1440 ie |
| Vixen | 1511 |
| Values for Old Faithful Area | 1991-06-19 |
|---|---|
| Astronomical Twilight Begin | 03:09 |
| Nautical Twilight Begin | 04:12 |
| Civil Twilight Begin | 05:01 |
| Sunrise | 05:38 |
| Sunset | 21:10 |
| Civil Twilight End | 21:47 |
| Nautical Twilight End | 22:36 |
| Astronomical Twilight End | 23:39 |
| Moon Illumination | 50.83% |