| Geyser | 1988-06-30 |
|---|---|
| Dark Cavern | 1504 |
| Echinus | 0942, 1027, 1107, 1201, 1213, 1305, 1315 maj, 1500 |
| Splutter Pot | 0625 |
| Steamvalve Spring | 1630 |
| Values for Old Faithful Area | 1988-06-30 |
|---|---|
| Astronomical Twilight Begin | 03:15 |
| Nautical Twilight Begin | 04:17 |
| Civil Twilight Begin | 05:05 |
| Sunrise | 05:42 |
| Sunset | 21:11 |
| Civil Twilight End | 21:48 |
| Nautical Twilight End | 22:36 |
| Astronomical Twilight End | 23:38 |
| Moon Illumination | 99.76% |