| Geyser | 1970-05-09 |
|---|---|
| Castle | 2325 |
| Old Faithful | 0759 long, 0914 long, 1025 short, 1109 long, 1220 short, 1310 long, 1423 long, 1535 short, 1624 long |
| Riverside | 1805 |
| Values for Old Faithful Area | 1970-05-09 |
|---|---|
| Astronomical Twilight Begin | 04:01 |
| Nautical Twilight Begin | 04:48 |
| Civil Twilight Begin | 05:29 |
| Sunrise | 06:02 |
| Sunset | 20:36 |
| Civil Twilight End | 21:09 |
| Nautical Twilight End | 21:50 |
| Astronomical Twilight End | 22:38 |
| Moon Illumination | 13.89% |