| Geyser | 1979-08-08 |
|---|---|
| Africa | 1307, 1331 |
| Constant | 1047, 1438 |
| Dark Cavern | 1330 |
| Echinus | 1322, 1748:58 |
| Little Whirligig | 0945 ie, 1040, 1349, 1645 ie |
| Whirligig | 1421 |
| Values for Old Faithful Area | 1979-08-08 |
|---|---|
| Astronomical Twilight Begin | 04:19 |
| Nautical Twilight Begin | 05:05 |
| Civil Twilight Begin | 05:45 |
| Sunrise | 06:17 |
| Sunset | 20:40 |
| Civil Twilight End | 21:12 |
| Nautical Twilight End | 21:52 |
| Astronomical Twilight End | 22:38 |
| Moon Illumination | 99.98% |