| Geyser | 1980-09-02 |
|---|---|
| Echinus | 1233 |
| Emerald Spring | 1200 |
| Guardian | 1438 |
| Valentine | 1450 |
| Veteran | 1143 |
| Whirligig | 1444 |
| Values for Old Faithful Area | 1980-09-02 |
|---|---|
| Astronomical Twilight Begin | 05:04 |
| Nautical Twilight Begin | 05:42 |
| Civil Twilight Begin | 06:17 |
| Sunrise | 06:47 |
| Sunset | 19:57 |
| Civil Twilight End | 20:27 |
| Nautical Twilight End | 21:03 |
| Astronomical Twilight End | 21:41 |
| Moon Illumination | 44.7% |