| Geyser | 1978-07-30 |
|---|---|
| Arsenic | 1150 ie |
| Dabble | 1800 |
| Echinus | 0713, 0913, 1037, 1200, 1447 |
| Palpitator Spring | 1200 |
| Whirligig | 1540 |
| Values for Old Faithful Area | 1978-07-30 |
|---|---|
| Astronomical Twilight Begin | 04:03 |
| Nautical Twilight Begin | 04:52 |
| Civil Twilight Begin | 05:34 |
| Sunrise | 06:07 |
| Sunset | 20:51 |
| Civil Twilight End | 21:24 |
| Nautical Twilight End | 22:07 |
| Astronomical Twilight End | 22:56 |
| Moon Illumination | 19.56% |