| Geyser | 1988-08-10 |
|---|---|
| Echinus | 0750, 0845, 0945, 1047, 1158, 1300, 1410, 1515 maj |
| Steamvalve Spring | 0816, 0816, 1259 |
| Values for Old Faithful Area | 1988-08-10 |
|---|---|
| Astronomical Twilight Begin | 04:25 |
| Nautical Twilight Begin | 05:09 |
| Civil Twilight Begin | 05:49 |
| Sunrise | 06:21 |
| Sunset | 20:36 |
| Civil Twilight End | 21:08 |
| Nautical Twilight End | 21:47 |
| Astronomical Twilight End | 22:32 |
| Moon Illumination | 4.8% |