| Geyser | 1990-07-16 |
|---|---|
| Arsenic | 1441 |
| Corporal | 1030 |
| Echinus | 0922, 1444 |
| Fireball | 0959 |
| Incline | 1020, 1205, 1215 A |
| Veteran | 1024, 1045, 1045 |
| Whirligig | 1009, 1038, 1447 |
| Values for Old Faithful Area | 1990-07-16 |
|---|---|
| Astronomical Twilight Begin | 03:37 |
| Nautical Twilight Begin | 04:33 |
| Civil Twilight Begin | 05:18 |
| Sunrise | 05:53 |
| Sunset | 21:04 |
| Civil Twilight End | 21:40 |
| Nautical Twilight End | 22:25 |
| Astronomical Twilight End | 23:21 |
| Moon Illumination | 41.06% |