| Geyser | 1970-05-13 |
|---|---|
| Great Fountain | 0930 |
| Old Faithful | 0841 short, 0927 long, 1040 short, 1124 long, 1330 long, 1446 short, 1532 long, 1644 long |
| Values for Old Faithful Area | 1970-05-13 |
|---|---|
| Astronomical Twilight Begin | 03:53 |
| Nautical Twilight Begin | 04:42 |
| Civil Twilight Begin | 05:24 |
| Sunrise | 05:57 |
| Sunset | 20:41 |
| Civil Twilight End | 21:14 |
| Nautical Twilight End | 21:56 |
| Astronomical Twilight End | 22:45 |
| Moon Illumination | 48.21% |