| Geyser | 1989-09-08 |
|---|---|
| Cistern Spring | 1200 |
| Echinus | 0945 ?, 1100, 1135, 1231, 1249 ?, 1325, 1443, 1508 |
| Emerald Spring | 1200 |
| Green Dragon Spring | 1200 |
| Pearl | 1200 |
| Veteran | 1200 |
| Vixen | 1015 |
| Yellow Funnel Spring | 1200 |
| Values for Old Faithful Area | 1989-09-08 |
|---|---|
| Astronomical Twilight Begin | 05:13 |
| Nautical Twilight Begin | 05:49 |
| Civil Twilight Begin | 06:25 |
| Sunrise | 06:54 |
| Sunset | 19:47 |
| Civil Twilight End | 20:16 |
| Nautical Twilight End | 20:51 |
| Astronomical Twilight End | 21:28 |
| Moon Illumination | 48.48% |