| Geyser | 1979-06-04 |
|---|---|
| Africa | 0901, 1118, 1215, 1427, 1642 |
| Constant | 1217 |
| Echinus | 1148, 1315, 1445 ie, 1600 |
| Little Whirligig | 1113 ie, 1240, 1410 ie, 1639 |
| Porkchop | 1107 ie |
| Vixen | 1800 |
| Whirligig | 0857 ie, 1427 |
| Values for Old Faithful Area | 1979-06-04 |
|---|---|
| Astronomical Twilight Begin | 03:18 |
| Nautical Twilight Begin | 04:17 |
| Civil Twilight Begin | 05:04 |
| Sunrise | 05:40 |
| Sunset | 21:02 |
| Civil Twilight End | 21:38 |
| Nautical Twilight End | 22:25 |
| Astronomical Twilight End | 23:25 |
| Moon Illumination | 62.42% |