| Geyser | 1990-07-27 |
|---|---|
| Echinus | 0920 maj, 1145, 1255, 1415, 1536 |
| Fireball | 1521 |
| Incline | 1255, 1315, 1435, 1452, 1509, 1530, 1554, 1620, 1638 |
| Values for Old Faithful Area | 1990-07-27 |
|---|---|
| Astronomical Twilight Begin | 03:57 |
| Nautical Twilight Begin | 04:47 |
| Civil Twilight Begin | 05:30 |
| Sunrise | 06:04 |
| Sunset | 20:54 |
| Civil Twilight End | 21:28 |
| Nautical Twilight End | 22:11 |
| Astronomical Twilight End | 23:01 |
| Moon Illumination | 28.03% |