| Geyser | 1979-09-23 |
|---|---|
| Constant | 1347 |
| Echinus | 1115, 1220 maj, 1355 min |
| Little Whirligig | 1057 |
| Orby | 1152 |
| Whirligig | 1052, 1105 |
| Values for Old Faithful Area | 1979-09-23 |
|---|---|
| Astronomical Twilight Begin | 05:33 |
| Nautical Twilight Begin | 06:08 |
| Civil Twilight Begin | 06:42 |
| Sunrise | 07:11 |
| Sunset | 19:20 |
| Civil Twilight End | 19:49 |
| Nautical Twilight End | 20:23 |
| Astronomical Twilight End | 20:58 |
| Moon Illumination | 3.14% |