| Geyser | 1983-08-22 |
|---|---|
| Echinus | 1523 |
| Incline | 1409:10, 1417:22, 1425:45, 1433:58, 1443:22, 1452:04, 1500:32, 1509:33, 1520:30, 1528:57, 1536:46, 1543:57, 1551:52, 1600:15, 1609:36, 1730 |
| Steamboat | 1200 |
| Values for Old Faithful Area | 1983-08-22 |
|---|---|
| Astronomical Twilight Begin | 04:45 |
| Nautical Twilight Begin | 05:25 |
| Civil Twilight Begin | 06:03 |
| Sunrise | 06:34 |
| Sunset | 20:18 |
| Civil Twilight End | 20:49 |
| Nautical Twilight End | 21:26 |
| Astronomical Twilight End | 22:07 |
| Moon Illumination | 98.31% |