| Geyser | 1978-09-29 |
|---|---|
| Blue | 1607 ie |
| Dark Cavern | 1632 |
| Echinus | 1040, 1148, 1402 |
| Whirligig | 0930, 1030 ie, 1315, 1607 ie |
| Values for Old Faithful Area | 1978-09-29 |
|---|---|
| Astronomical Twilight Begin | 05:41 |
| Nautical Twilight Begin | 06:16 |
| Civil Twilight Begin | 06:49 |
| Sunrise | 07:18 |
| Sunset | 19:08 |
| Civil Twilight End | 19:37 |
| Nautical Twilight End | 20:11 |
| Astronomical Twilight End | 20:45 |
| Moon Illumination | 9.05% |