| Geyser | 1990-07-04 |
|---|---|
| Arsenic | 1254 |
| Constant | 1047, 1545 |
| Echinus | 0955, 1053, 1400, 1455 |
| Fan-Norris | 1350 |
| Fireball | 0954, 1114, 1233 ie, 1340, 1614 |
| Whirligig | 1005, 1307, 1407 |
| Values for Old Faithful Area | 1990-07-04 |
|---|---|
| Astronomical Twilight Begin | 03:19 |
| Nautical Twilight Begin | 04:20 |
| Civil Twilight Begin | 05:08 |
| Sunrise | 05:44 |
| Sunset | 21:11 |
| Civil Twilight End | 21:47 |
| Nautical Twilight End | 22:35 |
| Astronomical Twilight End | 23:35 |
| Moon Illumination | 86.87% |