| Geyser | 1978-07-16 |
|---|---|
| Arsenic | 1825 ie |
| Constant | 1815 |
| Dark Cavern | 1355 |
| Echinus | 0910, 1026, 1141 |
| Ledge | 1300 |
| Moxie | 1825 ie |
| Splutter Pot | 1335, 1825 |
| Whirligig | 1119 ie, 1350, 1510 |
| Values for Old Faithful Area | 1978-07-16 |
|---|---|
| Astronomical Twilight Begin | 03:37 |
| Nautical Twilight Begin | 04:32 |
| Civil Twilight Begin | 05:18 |
| Sunrise | 05:53 |
| Sunset | 21:04 |
| Civil Twilight End | 21:40 |
| Nautical Twilight End | 22:25 |
| Astronomical Twilight End | 23:21 |
| Moon Illumination | 79.09% |