| Geyser | 1998-12-11 |
|---|---|
| Aurum | 1616 |
| Daisy | 1510 |
| Grotto | 1408 ie |
| Mortar-Solo | 1519 ie min |
| Oblong | 1315 A |
| Riverside | 1542 |
| Sawmill | 1338 ie |
| Turban | 1338 ie |
| Vent | 1338 ie |
| West Triplet | 1408 ie |
| Values for Old Faithful Area | 1998-12-11 |
|---|---|
| Astronomical Twilight Begin | 06:04 |
| Nautical Twilight Begin | 06:39 |
| Civil Twilight Begin | 07:16 |
| Sunrise | 07:49 |
| Sunset | 16:43 |
| Civil Twilight End | 17:16 |
| Nautical Twilight End | 17:53 |
| Astronomical Twilight End | 18:28 |
| Moon Illumination | 44.81% |