| Geyser | 1980-09-17 |
|---|---|
| Bear Den | 1053 |
| Echinus | 1201:40 min, 1208:41, 1236:50 min, 1244:16 |
| Porkchop | 1129 ie |
| Veteran | 1138 |
| Values for Old Faithful Area | 1980-09-17 |
|---|---|
| Astronomical Twilight Begin | 05:26 |
| Nautical Twilight Begin | 06:01 |
| Civil Twilight Begin | 06:36 |
| Sunrise | 07:05 |
| Sunset | 19:30 |
| Civil Twilight End | 19:59 |
| Nautical Twilight End | 20:33 |
| Astronomical Twilight End | 21:08 |
| Moon Illumination | 46.72% |