| Geyser | 1988-08-16 |
|---|---|
| Constant | 1327 |
| Dark Cavern | 1235, 1302, 1313 |
| Echinus | 0859, 1130, 1220, 1323, 1425, 1547 |
| Fireball | 1234 |
| Minute | 1215 |
| Steamvalve Spring | 1130, 1220 |
| Sunday | 1200 |
| Veteran | 1200 |
| Values for Old Faithful Area | 1988-08-16 |
|---|---|
| Astronomical Twilight Begin | 04:35 |
| Nautical Twilight Begin | 05:18 |
| Civil Twilight Begin | 05:56 |
| Sunrise | 06:27 |
| Sunset | 20:26 |
| Civil Twilight End | 20:58 |
| Nautical Twilight End | 21:36 |
| Astronomical Twilight End | 22:18 |
| Moon Illumination | 12.03% |